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FUNNY & FABULOUS FRACTION STORIES Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 30 Reproducible Math Tales and Problems To Reinforce Important Fraction Skills by Dan Greenberg S C H O L A S T I C PROFESSIONALBOOKS New York • Toronto • London • Auckland • Sydney Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Teachers may photocopy the designated reproducible pages for classroom use. No other part of this publication may be reproduced in whole or in part, or stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, without written permission of the publisher. For information regarding permission, write to Scholastic, 555 Broadway, New York, 10012. Cover design by Jaime Lucero, Liza Charlesworth, and Vincent Ceci Interior design by Robert Dominguez and Jaime Lucero for Grafica, Inc. Illustrations by Jared Lee ISBN 0-590-96576-X Copyright © 1996 by Dan Greenberg. All rights reserved. Printed in the U.S.A. 99999999999999999 Contents HOW TO USE THIS BOOK . . . . . . . . . . . 5 ADDING AND SUBTRACTING FRACTIONS THE BASICS Skill 9: Adding and Subtracting Fractions with Like Denominators Skill 1: Picturing Fractions Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Martha Crunch, Personal Fractions Trainer . . . . . . . . . . . . . . . . . 9 Skill 2: Recognizing Fractions Great Artists of the World Draw Fractions. . . . . . . . . . . . . . . . . . 11 Skill 3: Drawing and Identifying Fractions Rex Roper’s Believe It or Not! . . . . . . 28 Skill 10: Adding and Subtracting Mixed Numbers with Like Denominators Texarkana Bernstein: The World’s Greatest Adventurer and Her Trusty Dog, Woovis (Episode 1) . . . . . . . . . . 31 Skill 11: Least Common Denominators Officer Meg O’Malley of the Fraction Police . . . . . . . . . . . . . . . . . . . . . . . . . 35 Skill 12: Adding and Subtracting Fractions with Unlike Denominators Martha’s Brain . . . . . . . . . . . . . . . . . . 38 Skill 13: Adding Mixed Numbers with Unlike Denominators Texarkana Bernstein: The World’s Greatest Adventurer and Her Trusty Dog, Woovis (Episode 2) . . . . . . . . . . . 40 The History of Fractions: A Play . . . . 13 Skill 4: Comparing Fractions Dear Ms. Fraction . . . . . . . . . . . . . . . 16 Skill 5: Equivalent Fractions Louie Lewis, Fractional Private Eye . . 18 Skill 6: Introduction To Simplest Form Martha and Steve: Simplest Form. . . 20 Skill 7: Improper Fractions and Mixed Numbers Joe Trella, Fraction Fella . . . . . . . . . . 22 Skill 8: Practice Simplest Form Skill 14: Subtracting Mixed Numbers with Unlike Denominators Never More, Baltimore! . . . . . . . . . . . 25 Billy Doogan, Roving Weather Man . . 43 Skill Review Skill Review Ultra Workout 1 . . . . . . . . . . . . . . . . . 27 Ultra Workout, Too! . . . . . . . . . . . . . . 46 continued on next page MULTIPLYING AND DIVIDING FRACTIONS 99999999999999999 Contents Skill 15: Multiplying Fractions by Whole Numbers Emily Taproot, Fractional Poet . . . . . 47 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Skill 16: Multiplying Fractions USING FRACTIONS Skill 22: Multiplying Probabilities The Critics . . . . . . . . . . . . . . . . . . . . . 63 Skill 23: Ratios Arnold Guck: Man or Myth? . . . . . . . 65 The Frackie Awards . . . . . . . . . . . . . . 49 Skill 17: Reciprocals Emily Taproot’s Winky-Tinky Tigglesworth . . . . . . . . . . . . . . . . . . . . 52 Skill 18: Dividing Fractions Louie Lewis: The Case of the Flipping Fractions . . . . . . . . . . . . . . . 54 Skill 19: Multiplying And Dividing Mixed Numbers Officer Meg O’Malley: Episode 2 . . . . 56 Skill 20: Multiplying and Dividing Mixed Numbers Yucky Cooking with Mr. Pierre . . . . . 58 Skill 21: Multiplying and Dividing Fractions Martha Crunch and Her Amazing Fraction Workout Video . . . . . . . . . . . 60 Skill Review Ultra Workout 3!. . . . . . . . . . . . . . . . . 62 Skill 24: Equivalent Fractions and Decimals Enid The Magnificent, Part 1. . . . . . . 68 Skill 25: Equivalent Fractions and Decimals Enid the Magnificent, Part 2: Enid Does the Unthinkable . . . . . . . . 70 Skill 26: Fraction Number Sense Name That Fraction . . . . . . . . . . . . . . 72 Skill 27: Multiplication, Division and Addition Martha’s Brain Game. . . . . . . . . . . . . 75 TEST 1: THE ULTIMATE FRACTION WORKOUT, PART ONE . . . . . . . . . . . . 77 TEST 2: THE ULTIMATE FRACTION WORKOUT, PART TWO . . . . . . . . . . . . 79 ANSWERS . . . . . . . . . . . . . . . . . . . . . . 82 W elcome to Funny & Fabulous Fraction Stories! 99999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources How To Use This Book Fractions are a tricky topic. Neither completely concrete or abstract, they mark the transition in math from the purely representational to the purely symbolic. Because of this, many students find fractions difficult to learn—and many teachers find them difficult to teach. This book seeks to make fractions more accessible to both students and teachers by introducing an element of fun. The stories, poems, plays, and parodies contained in these pages are designed to entertain your students and at the same time to give them a solid grasp of important fractional concepts. The characters and situations in each activity will also help students apply the concepts they learn to real-life situations—a key element of the 5 National Council of Teachers of Mathematics’ Curriculum Standards. The stories in this book are intended to appeal to all kinds of learners, including: • students at all achievement levels • students working with fractions for the first time • older students who need review and enrichment • students who find it difficult to visualize and conceptualize fractions • students not easily motivated by traditional textbooks • students who seek a connection between their own lives and mathematical concepts 9999999999999999999 THE ACTIVITIES This book is divided into four sections: Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources • The Basics, which covers general fractional concepts, from visualizing fractions to expressing fractions in simplest form • Adding and Subtracting Fractions • Multiplying and Dividing Fractions • Using Fractions, where students apply the fraction skills they have learned to calculate probability, ratios, and decimals. Sprinkled throughout the book are a series of “One Way to Do It” tip boxes. Each suggests a strategy which students may find helpful in solving the problems in that particular activity. Students should not be limited to that specific solving strategy, however; if they prefer using a method other than the one suggested in the box, by all means encourage them to try it. 6 To make selecting appropriate activities an easier task, the table of contents lists the primary concepts covered in each activity. ASSESSMENT Each of the first three sections concludes with a Skill Workout that reinforces concepts covered in that section. In addition, two tests appear at the end of the book. • Test No. 1 covers sections 1 and 2, including basic fraction concepts and addition and subtraction of fractions. • Test No. 2 covers sections 3 and 4, including multiplication and division of fractions, reciprocals, ratios, and conversion of fractions to decimals. THE SOLUTIONS Annotated solutions to each of the 27 activities, plus the workouts and tests, are located on pages 82 to 88. 9999999999999999999 The stories in this book can be used in a variety of ways. Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources • You can use the activities as a framework from which to approach fractions, or as a supplement to classroom activities. • You can work through the problems in sequence, or reinforce skills as you see fit. • Students can work on the stories individually, in teams or groups, or as a class. • Stories can be assigned to students for independent self-paced study. • Activities can be read as part of an interdisciplinary program that includes storytelling, fantasy, humor, or literature. • The use of manipulatives is an excellent way to reinforce the skills presented in this book. For even more enrichment, have students brainstorm other real-life applications of the fraction concepts presented in each activity. • Encourage students to explore different problem-solving methods when working on an activity. In addition, remind them that the best way to be sure they’ve done a problem correctly is to check their work. 7 • Many students find word problems like the ones in this book challenging. Make sure students carefully read the problems and are able to state the question being asked before they attempt to solve them. • Present the activities in unique ways. If a story is written in dialogue form, for example, assign roles to students and have them read it aloud. • Once students have shown an understanding of fractional concepts, allow them to use calculators to solve some of the more challenging word problems presented in the book. I hope this book helps you to motivate your students to a greater understanding of fraction concepts. I know they’ll have a great time learning them! —Dan Greenberg Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources SKILL 1: Picturing Fractions Name 99999999999999999 Martha Crunch, Personal Fractions Trainer Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Hi. I’m Martha Crunch, your personal fractions trainer. And this is Steve. Say hello, Steve. Ra-a-ah! Ee-e-urk! Welcome to fractions, the Martha Crunch way. You know what really gets me? People who think fractions are hard. Doing 250 jumping jacks on a gravel driveway—barefoot … now that’s hard. Compared to that, fractions are a PIECE OF CAKE. So what do you say? Are you ready to learn fractions... ...the Martha Crunch way? Ra-a-ah! Ee-e-urk! When do we start? Right now, Steve. 9 HERE’S A PRACTICE PROBLEM TO GET YOU GOING. If you color in 3 of the boxes in the bar above, what fraction of the whole bar is colored in? First color in 3 boxes. Like this: To find out what fraction of the bar is colored in: 1. On the top, write the NUMBER OF BOXES YOU COLORED IN. 2. Write the TOTAL NUMBER OF BOXES on the bottom. 3 3 4 _3 of the bar is colored in! 4 1. Color 2 squares. What fraction is colored? Write: <— Number of colored squares <— Total number of squares 9999999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 2. Color 1 section of the circle. What fraction is colored? 6. Color 1 slice. What fraction is colored? Write: Write: <— Number of colored sections <— Number of colored slices <— Total number of sections <— Total number of slices 3. Color 3 circles. What fraction is colored? Write: 7. Color 5 squares. What fraction is colored? <— What number goes here? <— Number of colored circles <— Total number of circles 4. Color 3 ovals. What fraction is colored? Write: <— Number of colored ovals <— Total number of ovals 5. Color 4 x’s. What fraction is colored? Write: XXXXX <— Number of colored x’s <— Total number of x’s <— What number goes here? 8. Color 7 donuts. What fraction is colored? oooooooooo <— What number goes here? <— What number goes here? 9. Color 6 triangles. What fraction is colored? 10. Color 4 bars. What fraction is colored? 10 SKILL 2: Recognizing Fractions Name Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Five of the world’s great artists have volunteered to explain how their most famous work relates to fractions. Pablo Pescado: I paint fishes. Only fishes. Always fishes. People ask me, “Pablo, why fishes?” I say to them: Why not fishes? No one has ever been able to give me a reason why not. Can you? Fishes, Fishes by Pablo Pescado 1. What fraction of fishes is plain? 2. What fraction is striped? 3. What fraction has open mouths? 4. What fraction has their mouths closed? 9999999999999999 Great Artists of the World Draw Fractions ______ ______ ______ ______ 11 Leonardo da Pepperoni: Look into the eyes of the young woman. They tell a story. It is a love story. It is a story of a woman and a pizza. She loves the pizza because it has extra cheese. I hate to brag. But to me, this is the most beautiful painting in the world. Mona Lisa with a Pizza by Leonardo da Pepperoni 5. What fraction of the pizza has only cheese? ______ 6. What fraction of the pizza has pepperoni? ______ 7. Five slices represent what fraction of the pizza? ______ 8. Eight slices represent what fraction of the pizza? ______ Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources In the desert where I live, one often comes across a scene like this. The sky is bright. The cow is lonely. The fence is angry. How can you tell? It is picketing. The Sky, a Cow, a Fence by Georgia O’Fourth 9. What fraction of the cow’s legs is colored? 9999999999999999999 Georgia O’Fourth: ______ 10. What fraction of the cow’s legs is white? ______ 11. What fraction of the fence is colored? ______ 12. What fraction of the fence is white? ______ Salvadore Golly: Little Men Holding Umbrellas Falling Out of the Sky by Salvadore Golly This painting was inspired by a real experience I had. It started raining hard. First it rained cats and dogs. Then it rained shoes and socks. Finally, it rained little men. Some of them were wearing hats, and some were holding umbrellas. 12 13. What fraction of the little men are holding umbrellas? ______ 14. What fraction of the men are not holding umbrellas? ______ 15. What fraction of the little men are wearing hats? ______ 16. What fraction of the men are not wearing hats? ______ Diane Rhombus: This is a picture of a girl with a bad haircut making lemonade. I call it Girl With a Bad Haircut Making Lemonade. I tasted some of the lemonade after I finished the picture. It was delicious. P.S. The girl better get a new haircut. Girl With a Bad Haircut Making Lemonade by Diane Rhombus 17. What fraction of the pitcher is full? ______ 18. What fraction of the pitcher is empty? ______ 19. What fraction of the glass is full? ______ 20. What fraction of the glass is empty? ______ MORE: Draw your own artwork. When you’re done, label all the fractions you can find on it. SKILL 3: Drawing and Identifying Fractions Name The History of Fractions: A Play in One Act 9999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Written and Performed by the Students in Ms. Webster’s Class NARRATOR: No one knows for sure who discovered fractions. But experts suspect it had something to do with the invention of the cookie, back in the Stone Age. STONE AGE MOM: Look, kids! It’s one of those newfangled cookie things! STONE AGE KID: I want it. OTHER KID: No, I want it. MOM: Now look what you did. You broke the cookie in two differentsized parts. Hmm—that gives me an idea. You take this part. And you take this other part. (She gives a part to each kid.) BOTH KIDS: Gee, thanks. NARRATOR: Experts believe this method of dividing cookies was used for thousands of years. But as the Iron Age dawned, kids began to squabble over the size of the cookie pieces they got. IRON AGE KID: His piece is bigger than mine! OTHER KID: No, hers is bigger! IRON AGE KID: Hey, what’s going on in there? IRON AGE MOM: (to Dad) Let me borrow your ax. (She cuts another cookie into two equal pieces.) DAD: What do you call this strange new method of peacemaking? MOM: I call them HALVES. BOTH KIDS: Wow. NARRATOR: And so it was discovered that two halves of something had to be of equal size. (And so did three thirds, and four quarters, and five fifths.) Following this discovery, fractions flourished in the Ancient World. True, there were those years during the time of the Romans when fractions were very difficult to write and use. ROMAN MOM: (shopping at Roman store) Let’s see...I’d like a VIIIth of a 13 9999999999999999999 pound of Roman Meal Bread. ROMAN SHOPKEEPER: Oy. There must be a better way. NARRATOR: ...this shepherd girl... SHEPHERD GIRL: I need to round 5 up _6 of my flock. Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources NARRATOR: Let’s fast-forward to a More Recent Age. Two inventors, Francine Numerator and Larry Denominator, get together for an historic agreement... FRANCINE NUMERATOR: So it’s a deal. We’ll call the top part of the fraction the numerator— LARRY DENOMINATOR: —and the bottom part the denominator. Let’s shake on it! NARRATOR: And so modern fractions with numerators on the top and denominators on the bottom were born. People from all different walks of life found uses for fractions. For example, this piemaker... 1 PIEMAKER: My customer wants _2 of this big pie, and _2 of this small 3 pie. NARRATOR: ...this carpenter... 3 CARPENTER: I need to paint _4 of 1 _ this long board and of this short 4 board. NARRATOR: ...even this miser... MISER: I need to save _4 of these 9 coins. NARRATOR: Yes, fractions were extremely useful. But the most useful purpose of all wasn’t discovered until the very recent past. Here we join a teacher sitting up late at night. MS. WEBSTER: I need something that my students will find truly fun and fascinating. Wait! I’ve got it! Fractions! NARRATOR: And so the best use of fractions was found: to make the students in Ms. Webster’s class happy! KID IN CLASS: Please, Ms. Webster, give us more fractions for homework... ANOTHER KID: Oh, yes. Please! Please! MS. WEBSTER: Well, okay. If you insist. 14 9999999999999999999 ALL THE KIDS: Hurray! NARRATOR: So what are you waiting for, kids? Settle down and do these fractions! 8. Use any kind of drawing you 7 _ . like to show the fraction 10 KID: They’re so cute and cuddly... ANOTHER KID: and good for you, too! Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources WHOLE CLASS: Goodnight, everyone. THE END (curtain) PROBLEMS _1 of the 1. Mark and color in 2 piemaker’s large pie. _1 of 9. Draw 6 shapes. Color in 2 the shapes. _2 of his small 2. Mark and color in 3 pie. _3 of the car3. Mark and color in 4 penter’s long board. _1 of her short 4. Mark and color in 4 board. 5. How many sheep does the shepherd girl need to round up? ______ 6. How many coins does the miser need to save? ______ 7. Use any kind of drawing you _3 like to show the fraction 5. _2 of 10. Draw 12 shapes. Color in 3 the shapes. Note: Ideas expressed in this play are solely those of Ms. Webster’s class. Any resemblance to anything real is strictly a coincidence. Any historical facts that turn out to be true are likewise a coincidence. We MADE ALL THIS UP! Yours truly, Ms. Webster’s Class. 15 SKILL 4: Comparing Fractions Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Dear Ms. Fraction, There’s this really cute boy in school. I’ll call him Randy. He 2 offered me _3 of his candy bar. 9999999999999999 Name Then there’s this other really cute 2 boy, Sandy. He offered me _5 of his candy bar. So now I don’t know. Who do you think really likes me more, Randy or Sandy? Signed, CLUELESS IN SEATTLE Dear Clueless, I don’t know who likes you more, but I can tell you who is willing to give you more candy. Look at these two candy bars. Color in _2 of the top one and _2 of 3 5 the bottom one. Which fraction of candy bar is bigger? Dear Ms. Fraction, This girl in my class, Jennifer, really thinks I’m cool. At least she thought I was cool. Then she offered to split a Mango Fango fruit drink with me. Well, Ms. Fraction, I forgot what I 5 was doing and drank _6 of the Mango Fango. That made Jennifer mad. She says I’m worse than her last 7 boyfriend, Lloyd, who drank _8 of a Choco-Rocko shake they were sharing. So who’s worse, Lloyd or me? Signed, The Kansas City GULPer Dear KCG, Why don’t you line up a Mango Fango next to a Choco-Rocko? Color _5 of the Mango Fango and _7 of in 6 8 the Choco-Rocko. That should tell you who’s the bigger chugger. Randy’s Candy Bar Sandy’s Candy Bar Yours Truly, MS. FRACTION 16 Yours Truly, MS. FRACTION Mango Fango ChocoRocko 9999999999999999999 Dear Ms. Fraction, Help! I’m totally uncool. The way I see it, a cool baseball cap would 1 make me _4 cooler than I am now. But a totally cool haircut would 3 make me _8 cooler. Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources So which should I get, the hat or the hair? Signed, Uncool in UPPER ONTARIO Dear Uncool, Personally, I think ice cubes in your shoes would keep you the coolest. But what do I know? To compare the two cooling methods, divide these bars and see which fraction is bigger. _1 4 3 _ 8 cooler cooler Yours Truly, MS. FRACTION Dear Ms. Fraction, I took a survey in school to find out what girls really like in a guy. I 2 found that _3 of the girls liked a guy’s 3 smile, _4 thought a sense of humor 7 was important, _8 liked hair best, and _1 felt that expensive shoes were the 7 only thing that mattered. How can I make sense of these results? Signed, Survey Sam Dear Sam, Draw the fractions below on candy bars, pies, or whatever you like. Then list them in order from greatest to smallest. And if you want my opinion, it’s no contest: It’s the shoes. 17 Yours Truly, MS. FRACTION 2 _ 3 3 _ 4 7 _ 8 _1 7 Greatest to Smallest: SKILL 5: Equivalent Fractions Name My name is Louis Lewis. I’m a Fractional Detective. I solve fraction cases. You know the type: fourths, eighths, sixteenths, and so on. That’s why they call me Louie Lewis, FPE, Fractional Private Eye. Here’s my card: LOUIE LEWIS Fractional Private Eye 99999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Louie Lewis Fractional Private Eye Being an FPE is tough work, if you can get it. The hours are long. The pay is lousy. And the cases are baffling. Take this case I had just the other day... The Case of the Krispy Krackers I got a call from Victor Kronsky. He’s the millionaire owner of the Kronsky Krispy Krackers Kompany. You know the ones. They come in all different sizes like: WHOLES, HALVES, and FOURTHS. Whole Kracker 1 Does one of these... _1 Equal 2 of these? 2 _1 _1 4 4 Kronsky was frantic. His factory had messed up a gigantic cracker order, making thousands of FOURTHS crackers instead of HALF crackers. Unless he did something quick, his whole cracker empire was doomed! But there was one glimmer of hope. Kronsky’s cracker experts had told him that he could substitute two FOURTHS for one HALF. But was it true? Were two FOURTHS really equal to one HALF? “Blast it, Lewis!” Kronsky roared. “I’ve got to know the answer to this question, NOW!!” 18 9999999999999999999 “Sure thing, Mr. Kronsky,” I replied. “I’ll get right on it.” THIRDS,” Kronsky said. So I got right on it. But I’m not going to tell you the answer. Write 4 fractions that are equal to 3_1 . Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Instead, on another sheet of paper, use diagrams, cutouts, or numbers to prove the following: 1. 1 _ 2 is the same as 2 _ 4 2. 1 _ 2 is the same as 4 _ 8 3. Explain how you know your answers are true. Well, wouldn’t you know it. No sooner had I finished that problem when Kronsky came up with a new one. And this was a doozy. He wanted me to find FOUR NEW FRACTIONS that were equal to 2_1 . Can you think of 4 more fractions that are equal to 2_1? Write them here. 4. _______ 5. _______ 6. _______ 7. _______ Needless to say, I cracked the case. “Lewis,” Kronsky said, “you’re a genius. Now think of FOUR DIFFERENT FRACTIONS that are equal to 3_1 .” “What for?” I asked. 8. _______ 10. _______ 9. _______ 11. _______ Kronsky was delighted when I finished. “Remind me to give you a bonus,” he said. “A bonus?” I said. “You haven’t even paid me to begin with.” But that didn’t matter. Kronsky had more problems for me. He wanted me to think of 2 fractions that were equal to 3_2 , 4_3 , 5_2 , and 6_1 . Oh well. Another day, another fraction. Think of 2 different fractions that are equal to each fraction below. Draw a picture of each fraction if you need to. 12. 3_2 = _______ _______ 13. 4_3 = _______ _______ _2 = _______ _______ 14. 5 _1 = _______ _______ 15. 6 “I’m coming out with a new line of crackers that are divided into 19 SKILL 6: Introduction to Simplest Form Name 9999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Martha and Steve: Simplest Form Ra-a-ah! Ee-e-urk! No way! How do you know if a fraction is written in simplest form? 1 2 Take a look at _2 and _4 . _1 2 Simplest Form Hello. I’m Martha Crunch, your personal fraction trainer. And this is Steve. Say, you know what really makes me mad? Trying to do sit-ups while wearing these solid lead earrings! Every time I sit up I get bonked in the head! Boy, that makes me mad! You know what else makes me mad? Fractions that aren’t in simplest form. Look at these fractions: 2 _ 4 3 _ 12 14 _ 21 They’re not in simplest form. We don’t like ‘em like that. Do we, Steve? _2 4 Not Simplest Form 1 is The fractions are equal. But _2 2 _ written in simplest form. 4 isn’t. How can you tell when a fraction is in simplest form? The easiest way is to just try reducing. If you can’t reduce, the fraction is probably in simplest form. 20 Ra-a ee-urk. But how do you write a fraction in simplest form, Martha? What about a fraction _? like 14 21 9999999999999999999 No sweat, Steve! Here’s one way: Just think: what is the LARGEST number that divides evenly into both 14 and 21? That’s right. It’s 7. 14 21 ÷ ÷ 7 7 = 2 3 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources So just divide both 14 and 21 by 7. _ equals _2. In simplest form, 14 21 3 So you see, if you do it the MARTHA CRUNCH WAY, writing fractions in simplest form can be... JUST PEACHY! To see for yourself, try these problems. We did the first one for you. 5 _ 1. 10 = 6 _ 2. 14 = _1 2 ______ 4 _ 3. 20 = ______ 20 _ = 4. 70 ______ _ 5. 15 25 = ______ _ 6. 12 28 = ______ 8 _ 7. 32 = ______ 18 _ = 8. 45 ______ 15 _ = 9. 18 ______ 24 _ = 10. 30 ______ 40 _ = 11. 80 ______ 36 _ = 12. 42 ______ 36 _ = 13. 45 ______ 28 _ = 14. 49 ______ 26 _ = 15. 39 ______ 48 _ = 16. 54 ______ 33 _ = 17. 44 ______ 40 _ 18. 100 = ______ 81 _ = 19. 90 ______ 64 _ = 20. 96 ______ Hey, what’d I tell you? Was that a piece of cake or was that a piece of cake? Bye bye everyone! See you next time. MARTHA’S E-Z FRACTION TIPS BONUS Hey, kids! Here’s a way to make writing fractions in simplest form easier than doing 25 one-handed push-ups with your eyes closed. First, simplify as best you can. 36 ÷ 6 6 = 48 ÷ 6 8 When you’re done, see if you can simplify again. Sometimes you can. 6÷2 3 = 8÷2 4 So remember: When you’re done simplifying, look again. Sometimes you can simplify one more time. Martha Crunch’s wardrobe furnished by Fraction Gal Fashions. 21 SKILL 7: Improper Fractions and Mixed Numbers Name JOE: Welcome back, everyone. 1 You’re listening to 99 _2 WFRA, the home of Talk Fraction Radio. I’m Joe Trella, the Fraction Fella. OK, let’s go to the phones. Betty, you’re on Line 2. 99999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Joe Trella, Fraction Fella BETTY: Hi Joe. Love your show. I listen to it half the time. JOE: Half the time? Why only half? BETTY: Sorry, Joe. I was just joking, see. “Half” is a fraction. Get it? JOE: I get it, Betty. What’s your problem? BETTY: It’s my 14-year old daughter, Dora Mae. Whenever I give her a 2 mixed number, like 2 _3 , she turns it into an improper fraction. You know the type. Where the top number is 8 bigger than the bottom. Like _3 . She thinks it’s funny. JOE: Hey, I used to do the same thing when I was a kid. BETTY: You did? JOE: Sure. You know what you ought to do? Use reverse psychology. Give Dora Mae some improper fractions, and make her think you want her to keep ‘em that way. I bet she’ll turn ‘em right into mixed numbers. BETTY: Great idea, Joe. Hey, thanks a lot. 22 CHANGING IMPROPER FRACTIONS TO MIXED NUMBERS To write 7_ as a mixed number: 5 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 1. Divide the bottom (denominator) into the top (numerator). 2. Write the remainder as a fraction with the same denominator. 1 R 2 5 7 1 R2 2 1_ 5 9999999999999999999 ONE W TO DO AY IT plest form, then go ahead and change to simplest form. AL: Is that all there is to it, Joe? JOE: You bet. Here’s what you should do. Try writing these improper fractions as mixed numbers. Then, if they’re not in simplest form, change ‘em to simplest form. You’ll feel much better. I promise ya. AL: Hey, thanks Joe. These improper fractions look great. They really do. I’m gonna try ‘em as soon as I hang up. Write these improper fractions as mixed numbers. _3 = _______ 1. 2 _ = _______ 6. 16 5 _5 = _______ 2. 3 _ = _______ 7. 25 8 _7 = _______ 3. 4 _ = _______ 8. 35 6 _9 = _______ 4. 2 57 _ = _______ 9. 10 _ = _______ 5. 14 5 91 _ = _______ 10. 15 JOE: Let’s go to Al on Line 4. Hello, Big Al. AL: Hello, Joe. Love your show. So anyway, what’s the deal with improper fractions? JOE: What do you mean? AL: When I change an improper fraction to a mixed number—sometimes I find it’s not in simplest form. Is this normal? JOE: Relax, big guy. You know what my Uncle Roy used to say to me? If you need to change to sim- Write these improper fractions as mixed numbers. Make sure they’re in simplest form. _8 = _______ 11. 6 _ = _______ 16. 13 7 _ = _______ 12. 12 8 45 _ = _______ 17. 36 _ = _______ 13. 12 3 60 _ = _______ 18. 48 _ = _______ 14. 21 9 _ = _______ 19. 100 24 30 _ = _______ 15. 12 88 _ = _______ 20. 16 JOE: Let’s go to Pauline on Line 5. PAULINE: Hi, Joe. It’s my little brother, Danny. He’s 10. Every time he sees an improper fraction, it’s like he NEEDS to turn it into a mixed number. JOE: Relax, Pauline. I think I know someone your little brother would like to meet. Her name is Dora Mae. PAULINE: Oh, wow, Joe. That’s sounds great. 23 9999999999999999999 JOE: So this is what you do. Have your brother turn these mixed numbers into improper fractions. And I’ll see about getting him together with Dora Mae. Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources ONE W TO DO AY IT CHANGING IMPROPER FRACTIONS TO MIXED NUMBERS 2 To change 2 _3 to an improper fraction: 1. Multiply the whole number by the bottom (denominator) of the fraction. 2. Add the top (numerator) of the fraction to that product. 3. Write the improper fraction with the same denominator. 1 2 _ 3 1 2_ 3 6 6+1 7 _ 3 Write these mixed numbers as improper fractions. PAULINE: Thanks, Joe. I think my little brother’s really going to like these fractions. JOE: Not as much as he’s gonna like Dora Mae. PAULINE: You’re probably right, Joe. JOE: When it comes to fractions, Pauline, I’m always right! Anyway, that’s about all we have time for. Goodnight, everyone! _1 = _______ 26. 4 _5 = _______ 21. 1 2 6 _2 = _______ 27. 10 _1 = _______ 22. 2 3 3 _2 = _______ 28. 8 _3 = _______ 23. 3 5 7 _1 = _______ 29. 12 _1 = _______ 24. 4 2 6 _5 = _______ 30. 40 _2 = _______ 25. 2 8 3 24 SKILL 8: Practice Simplest Form Name Never More, Baltimore! Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Once upon a midnight’s gloom Sat young Lenore inside her room Doing fractions late at night, Her heart a-pounding, full of fright. Whereupon she heard a moaning Then a ghastly gruesome groaning Followed by a ghostly roar, ‘Twas her pet parrot—Baltimore. Making dreadful, squawking sounds To mark each error that he found. “Squawk!” he screeched. “Another blunder.” Outside was heard a crack of thunder. “Stop!” she cried, “And don’t come near. Your squawking fills me full of fear. Does my homework have mistakes? Oh woe I am, my body quakes.” The bird it squawked, and then it spoke: “Oh good Lenore, I do not joke. Your fractions, like a wilted flower, Start out quite sweet but end up sour. “Like a melancholy song They start out right but end up wrong. Your fractions would be truly best If in simplest form they were expressed.” “In simplest form?” said young Lenore. “Oh please, I beg you, Baltimore. Can you show me how it’s done? We’ll work together; ‘twill be fun!” 25 And so the bird showed young Lenore How to reduce for Ever More. And as she worked all through the night, She changed her answers to make them right. Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources And as the morning sun shone through She had but one group left to do. You see it on the page below, So do it now, and off you go. Here are Lenore’s answers. If an answer is written in simplest form, write “OK” in the blank next to the answer. If the answer is not in simplest form, write it that way. = _______ 9. 32 _ 48 = _______ 2. 8 _ 8 12 = _______ 10. 48 _ 56 = _______ 3. _7 = _______ 58 11. 15 _ 80 = _______ 1. 12 _ 16 = _______ 42 _ = _______ 12. 12 48 30 _ = 5. 14 40 _______ 12 _ = _______ 13. 5 60 _______ 14. 4. 25 _ 30 6. 21 _ 35 = 7. 18 _ 25 = _______ 54 _ = _______ 15. 7 81 8. 22 _ 55 = _______ 16. 26 16 _ 27 96 _ 144 = _______ = _______ SKILL REVIEW: Quiz 1 Name 99999999999999999 Ultra-Workout 1 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Hi. Martha Crunch, your personal fractions trainer, here. And this is Ultra Workout 1! te UltraCAUTION: Those who comple ments Workout 1 may experience mo deep of severe light-headedness and mathematical understanding. For your own safety, DO NOT attempt Ultra-Workout 1 if any of the following is true: • Your hair is currently on fire. • You have a chip on your shoulder more than 17 inches long. • You are being chased by a swarm of angry bees. • Each of your feet weighs more than 250 pounds. 1. What fraction does this picture represent? __________________________________ 2. Draw a picture that _7 . shows the fraction 9 3. Order these fractions from 7 _ 1 _ 7 _ 1 _3, _ smallest to largest: 5 10, 3, 8, 2 . __________________________________ 4. Write two fractions _2 . that are equivalent to 5 __________________________________ _ in simplest form. 5. Write 24 32 __________________________________ 6. Write _7 as a mixed number. 4 __________________________________ 2 7. Write 4_ as an improper fraction. 3 __________________________________ Hey, wasn’t that easy? See you next time, everyone! 27 SKILL 9: Adding and Subtracting Fractions with Like Denominators Name 99999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Rex Roper’s Believe It or Not! Hi, kids. I’m Rex Roper, ace reporter for America’s number one tabloid, the National Gasbag Chatterer. I’d like to tell you about some things that are so STRANGE, so BIZARRE, so downright SHOCKING that you may not believe they actually happened. Are these things true? Well, you be the judge. 6 hour in the Tommy was treated for _7 ICFU (Incredibly Crummy Food Unit) at Fargo General Hospital. After 3 another _7 hour of observation, he was released. “I thought I was eating fish sticks,” Tommy explained. Doctors estimate that the boy swal3 lowed three bites of liver weighing _5 2 4 ounce, _5 ounce, and _5 ounce. “Ketchup saved him,” said Dr. Janet Janetski. “He had so much ketchup on it, he couldn’t even taste the liver.” “Hey,” said Tommy. “I put ketchup on everything.” Write all fractions in simplest form. 1. How much time did Tommy spend in the hospital? ______ 2. How much more time was spent treating Tommy than observing him? ______ Fargo, N.D. Ten-year-old Tommy Farkus mistakenly ate liver for dinner last night. 3. How many ounces of liver did Tommy eat in all? ______ Emergency teams rushed to the scene. 4. How many ounces of liver did Tommy eat in his first 2 bites? 28 ______ 9999999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 5. How much liver did Tommy eat in his last 2 bites? ______ 7. What fraction of victims ______ either panics or groans? 6. How much more liver did Tommy eat in his third bite than his second bite? ______ 8. What fraction of victims yowls or covers the stuff with ketchup? ______ ADDING FRACTIONS WITH LIKE DENOMINATORS ONE W TO DO AY IT 8 5 To add 9_ + 9_ : 1. Add the numerators 2. Change the sum to a mixed number, if necessary. 8 _ 5 13 _ + = _ 9 9 9 13 _= 9 4 1 _9 9. What fraction of victims panics, yowls, or covers with ketchup? ______ 10. What fraction panics, groans, yowls, or covers with ketchup? Awful foods like liver can turn up on your plate at any time. How can you protect yourself? Here’s what the experts say. • • • • 3 Don’t panic. _ 16 of all victims panic, but it doesn’t help. 1 _ of victims groan. That doesn’t 16 work either. 5 _ 16 of victims yowl. Don’t bother. _ 7 16 of victims cover their food with ketchup. This works best. ______ Bobville, SC: Mike, a mutt owned by 12-year-old Brenda Sykes, became the first dog in history to actually eat a homework assignment. Brenda had been making a scale model of Washington D.C. out of foot-long frankfurters when the hungry pup struck. “He ate the whole thing,” Brenda said. Among the monuments destroyed 1 were a _ 12-pound frankfurter 5 White House, a _ 12-pound frank7 furter Pentagon, a _ 12-pound _frankfurter Capitol, and an 11 12 pound frankfurter Smithsonian. (See questions on the next page) 29 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 12. How much more does the Smithsonian weigh than the Capitol? 13. How much more does the Capitol weigh than the White House? 9999999999999999999 11. What is the total weight of the frankfurter White House and the frankfurter Pentagon? MISSING HOMEWORK: THE REAL STORY Homework taken away by extraterrestrials ______ 4 _ 15 _1 15 2 _ 15 8 _ 15 Homework run over by lawn-mowers ______ Homework eaten by cats, hamsters, etc. Victim of the DUH syndrome — homework that has Disappeared, is Unaccounted for, and is Hard to explain. ______ 14. What is the total weight of all the buildings? ______ 15. What fraction of homework is eaten or run over by lawn mowers? ______ 16. What fraction is run over or taken by extraterrestrials? ______ 17. What fraction is eaten or becomes a victim of DUH? ______ 18. What fraction is eaten, run over, or taken away by extraterrestrials? ______ Each year, over 2 million school kids claim, “The dog ate my homework.” “But it’s almost never true,” said homework expert Larry Twitch. What actually does happen to all that homework? Twitch has prepared a graph that explains the mystery. 30 SKILL 10: Adding and Subtracting Mixed Numbers with Like Denominators Name Texarkana Bernstein: 9999999999999999 The World’s Greatest Adventurer and Her Trusty Dog, Woovis Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources EPISODE 1: In which Tex and Woovis meet up with the famous Johnny Hat-Size Howdy, and welcome to The Tales of Texarkana Bernstein: World’s Greatest Adventurer. I’m Woovis the dog, Tex’s faithful sidekick. Today’s tale tells the story of one of our greatest adventures. It all started when Tex and me were doin’ some explorin’ down near Dodge City. We saw our old pals, Pete Forker and Jane Spoon, being carting off to jail! “I’d have known those two horse thieves anywheres,” said the sheriff. He pointed to a WANTED poster: WANTED Horse Rustlers The hat sizes of these 2 desperadoes adds up to exactly 30 inches “I measured their hats myself, and what do you know,” said the Sheriff, “30 inches exactly.” “We’re being framed!” Forker cried. “These aren’t our hats! Our hats 5 both measure 14 _8 inches.” “Please, Tex,” said Spoon. “You’ve got to find Johnny Hat-Size and bring him here!” Before I go on with the story, try these problems. Use the information in the examples on the next page if you need help. 1. Suppose Forker and Spoon really do wear _5-inch hats. What is 14 8 the sum of their hat sizes? ______ 2. What is the difference between the sum of Forker’s and Spoon’s hat sizes and 30 inches? ______ 31 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 4. Write two other mixed numbers that both add up to 30. ONE W TO DO AY IT 8 1. Add the whole numbers and fractions separately. 2. Write the improper fraction in the sum as a mixed number. Then add it to the whole number. _ 610 8 ______ 1. It’s hard to subtract a mixed number from a whole number. So write 6 as 5 44_ (because 5 + 44_ = 6). 6 + 1 _28 = 6 2 _ + 18 7 _28 = 3 41_ Subtract 3 _83 7 _ 38 _ 610 8 + SUBTRACTING A MIXED NUMBER FROM A WHOLE NUMBER ______ ADDING MIXED NUMBERS WITH LIKE DENOMINATORS Add 3 3_ and 3 7_ : 8 9999999999999999999 3. Suppose Forker wears _5. What size would size 14 8 Spoon need to wear to make a total of 30 inches? 1 7 _4 So off we went, lookin’ for Johnny Hat-Size. Johnny’s pretty much like Johnny Appleseed, who roamed the west plantin’ apple trees. Only instead of plantin’ apple trees, Johnny Hat-Size measures people’s hat sizes. from 6: AY ONE W IT TO DO 6 _1 – 34 4 2. Subtract the fractions and whole numbers separately. 5 _4 _1 – 34 2 _43 We found Johnny near Cowtown, Texas. Sure enough, he was measurin’ hat sizes. Had the whole town lined up. “Johnny!” Tex cried. “You got to come with us. It’s Spoon and Forker. They’re in jail.” “Not again!” Johnny cried. Johnny rode back to Dodge City with us. On the way, he asked if he could measured our hat sizes. “Again?” Tex said. “You’ve measured my hat dozens of times before. And Woovis here’s a dog. He doesn’t wear hats.” 32 Time for some more problems. Use the example box if you get stuck. Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 5. What is the sum of Tex and Woovis’s hat-sizes? 6. How much larger is Tex’s hat size than Woovis’s hat size? 7. How much less than 30 inches is the sum of Tex’s and Woovis’s hat sizes? 9999999999999999999 Old Johnny didn’t care. He mea5 sured Tex at 13 _8 inches and me, 7 _ Woovis, at 6 8 inches. 3 ____________________________________ ____________________________________ We got back to Dodge City to find old Forker and Spoon stuck in their jail cell. “Measure us!” they cried to Johnny. “Can’t,” said the Sheriff. “Why not?” asked Tex. ABSOLUTELY NO HAT-SIZE F MEASURING O PRISONERS! 1 7 _3 2 _ – 43 4 6 _3 2. Subtract the fraction and whole numbers separately. ______ ______ 3 1. It’s hard to subtract _2 from _1. So write 7 _1 3 3 3 4 as 6 _3 4 1 (because 6 + _3 = 7 _3). ______ 8. Could Tex and Woovis be the rustlers? Why or why not? ______ The Sheriff pointed to a sign on the wall. SUBTRACTING A MIXED NUMBER AY FROM A MIXED NUMBER ONE W IT TO DO Subtract 4 2_ from 7 1_ : 2 _ – 43 2 _23 “Hmm,” said Tex suspiciously. Then we caught a lucky break. Some runaway stolen horses came steamin’ into town, draggin’ one of the real crooks. His name was Stinky Weeden. “Where’s yer partner?” Tex asked. “I ain’t tellin’,” Stinky said. But it didn’t matter, because Johnny came rushin’ over. He measured old 3 Stinky’s hat size at exactly 13 _8 inches. Now we had a way to figure out the hat size of Stinky’s unknown partner. 9. Is the hat of Stinky’s unknown partner larger or smaller than Stinky’s hat? Explain. ______ 33 ____________________________________ ____________________________________ ____________________________________ 9999999999999999999 10. Forker and Spoon both claim they have a hat size of _5 inches. Could either of 14 8 them be Stinky’s partner? Explain. __________________________ ____________________________________ That was my cue. I quick ran over and lassoed his head with my tail. Then Johnny jumped in and measured the lasso. “Sixteen and _5 inches,” he ____________________________________ announced. ____________________________________ Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources on the floor. The Sheriff bent over to pick it up. 11. What’s the hat size of Stinky’s unknown partner? ______ Then Tex came up with a plan. “We don’t know who Stinky’s partner is,” she explained, “but we do know his partner’s hat size. All we need to do is measure every hat in town.” So Johnny started measuring. Only thing is, no one’s hat seemed to be the right size. At the end of the day, Johnny figured only one person had gone unmeasured: the Sheriff. “Sorry,” said the Sheriff. He pointed to another sign on the wall. ABSOLUTELY NO HAT-SIZE MEASURING O F SHERIFF! Tex swung into action. First, she “accidentally” dropped a silver dollar 8 12. What is the sum of Stinky’s and the Sheriff’s hat sizes? ______ 13. How much bigger was the Sheriff’s hat than Stinky’s hat? ______ 14. How much bigger was the Sheriff’s hat than Forker’s and Spoon’s hats? ______ 15. Who do you think Stinky’s partner is? Why? ______ ____________________________________ ____________________________________ ____________________________________ We should’ve known it’d all turn out okay. They locked up that Sheriff and let old Forker and Spoon out of jail. Our old buddies couldn’t thank us enough. And Johnny Hat-Size? He kept on a measurin’ and a measurin’. In time, folks said he measured nearly every single hat size in the West. And Tex and me, well, we just kept havin’ adventures. 34 SKILL 11: Least Common Denominators Name Hi. Welcome to another episode of The Fraction Police, where each week you’ll see...Real crimes. Real Fractions. Real Justice. 9999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Officer Meg O’Malley of the Fraction Police I’m Officer Meg O’Malley. Has this ever happened to you? A kid tries to help you with your homework, but gives you a WRONG ANSWER: YOU: Wow, that’s a pretty neat trick. KID: It’s easy. And I’ve got plenty more tricks where that one came from. You say you’d never fall for a trick like this? Wrong! Every year I see kids just like you fall into BFHs— Bad Fractional Habits. Pretty soon, they’re committing FCs—Fractional Crimes. A Fractional Crime may look okay, but it doesn’t work. Take the FC mentioned above: _1 _1 _2 2 + 3 does NOT equal 5. To see why, just take a look at the evidence. OFFICIAL CRIME EVIDENCE EXHIBIT 1A 1 1 KID: Trying to add _2 + _3 , eh? That’s easy. Want to see how to do it? YOU: Well, I don’t know. KID: You’ll see. My way is easier. _1 + _1 equals _2. You just add up the 2 3 5 tops, then add up the bottoms. 35 _2 5 _2 bogus answer 5 + _1 2 _1 3 _1 3 _5 6 _1 real answer 2 FINDING THE LEAST COMMON DENOMINATOR To get the correct answer, you need to find the least common denominator. How do you find the least common denominator? Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Think: What’s the smallest number that can be divided evenly by both 3 and 2? The answer is 6. 9999999999999999999 ONE W TO DO AY IT How can you avoid falling into BFHs and committing FCs? Easy. Just do these problems. Make sure your answers are in simplest form. And read my handy tips below. 1. 4 + = = _ 6 _ 6 To change both denominators to 6: 1 2 • Multiply _3 by _2. 1 3 • Multiply _2 by _3 . + _1 3 _1 2 x x x x 2 _ 2 3 _ 3 = = = = 2 _ 6 3 _ 6 Now both fractions have the same denominator. When you add them, you 5 get a sum of _6. + 2 _ 6 3 _ 6 5 _ 6 (Hint: What’s the smallest number that can be divided by both 1 and 2?) + 1 So 6 is the least common denominator for this problem. _1 3 _1 2 1 2 2. 2 5 + 3 10 3. 2 3 + 1 6 4. 36 3 5 + 1 3 (Hint: What’s the smallest number that can be divided by both 5 and 10?) 3 8 + 1 2 6. 3 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 4 + 1 6 7. 2 7 + 5 14 8. 1 10 + 1 2 9. 5 8 + 1 6 9999999999999999999 5. 10. 37 7 10 + 2 15 Straight Talk from Meg O’Malley, Fraction Cop • Be on the lookout for SFTs— Suspicious Fractional Tricks. • Report all FCs—Fractional Crimes—to your local fractional police. • And when you’re adding fractions, for Pete’s sake, USE A COMMON DENOMINATOR! SKILL 12: Adding and Subtracting Fractions with Unlike Denominators Name 9999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Martha’s Brain Hello. I’m Martha Crunch, your personal fractions trainer. And this is Steve. Welcome to my brain, everyone! Old Pasta Recipes 1 _ 24 Gumption _1 6 Stubborn Determination Imagination 1 _ 12 _1 3 Vim and Vigor _1 8 Fa Olds Ba hion Go ked- ed I od ne n ss ? As you can see, my brain is full of good things... ...like Gumption, Vim and Vigor, and Old-Fashioned Baked-In Goodness. These things help me with my fractions. Plus, you’ll feel better knowing that my brain has absolutely NO artificial flavorings, colorings, or preservatives. 1. What part of my brain takes up the most space? __________________ ____________________________________ 2. What part takes up the smallest space? ____________________________ ____________________________________ 3. Which part takes up more space—Vim and Vigor or Gumption? How much more space does it take up? __________________ ____________________________________ 4. Which takes up more space— Stubborn Determination or Imagination? How much more space does it take up? ____________ ____________________________________ ____________________________________ ____________________________________ 38 ______ 6. What fraction of my brain is taken up by Old-Fashioned Baked-in Goodness? ______ 9999999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 5. Add up all the parts of my brain except for the Old-Fashioned Baked-in Goodness. What fraction do you get? 7. Which two parts of my brain make up exactly 1/2 of my brain power? ____________________________ ____________________________________ 8. Which three brain parts, when added together, are equal in size to Stubborn Determination? ______ ____________________________________ 9. Suppose my Old Pasta Recipes triple in size. They would now have the same size as what other brain area? ________________________ ____________________________________ Hey, this has been fun! For more fun with My Brain, see page 75. And for more fun with your own brain, try my Handy Brain Tips below. Otherwise, so long everyone! See you next time. 39 MARTHA’S HANDY BRAIN TIPS TIP 1: Your brain is a muscle. Use it or lose it! TIP 2: Math problems make your brain strong. Do 500 or more a day. TIP 3: At night, store your brain in a cool dry place, like your head. TIP 4: Try not to clutter your brain with too many old pasta recipes. TIP 5: Get a complete brain tune-up every 3 months or 3,000 thoughts, whichever comes first. SKILL 13: Adding Mixed Numbers with Unlike Denominators Name Texarkana Bernstein: 9999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources The World’s Greatest Adventurer and Her Trusty Dog, Woovis EPISODE 2: In which Tex and Woovis get involved in another one of their rollicking adventures Howdy, and welcome to The Tales of Texarkana Bernstein, the World’s Greatest Adventurer. I’m Woovis, Tex’s trusty dog. I’m also the narrator of this story. Tex and I were out trekkin’ on another one of our unforgettable journeys. Down near the Spooky-Dark Mountains we went, searchin’ for fabulous fortunes, glitterin’ jewels, tantalizin’ treasures, and hair-raisin’ adventure. Suddenly, a piece of paper came hurtlin’ through the window of our tent. It had three Secret Numbers written on it: SN #1: 4 _2 3 1 SN #2: 1 _ 6 3 SN #3: 3 _ 4 The other side had a Secret Riddle: SECRET RIDDLE #1 her Strong as an ox, light as a feat ther. Add the Secret Numbers toge more clear The answer then will become ear. As 4 NEW Secret Numbers app “Woof woof!” I said. “Right again,” Tex said. “Let’s add ‘em up and see what happens. We’ll use that information box on the next page if we run into trouble.” 1. Add Secret Numbers 1 and 2 to find Secret Number 4. SECRET NUMBER 4 = ______ 2. Add Secret Numbers 2 and 3 to find Secret Number 5. SECRET NUMBER 5 = ______ 40 9999999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 3. Add Secret Numbers 1 and 3 to find Secret Number 6. SECRET NUMBER 6 = ______ 4. Add Secret Numbers 1, 2, and 3 to find Secret Number 7. SECRET NUMBER 7 = of Saturn The sands of Mars, the rings ? ern Can you see a Riddle patt her Strong as an ox, light as a feat together. bers Add the NEW Secret Num ______ “Listen to this,” Tex said. She read the riddle aloud: ONE W TO DO AY IT ADDING MIXED NUMBERS WITH UNLIKE DENOMINATORS Add 5 1_ and 4 7_ : 3 1. Write the mixed numbers with a common denominator. Add the whole numbers and the fractions separately. 2. Write the improper fraction in the sum as a mixed number. Then add it to the whole number 9 + 5 _31 = 5 _93 4 _97 = 4 _97 _ 910 9 _ 910 9 = 9 + 1 _91 9 _1 + 19 10 _91 Well, we did it, all right. Solved that old Riddle Number 1 as sure as my name’s Woovis. Now that we’d solved Riddle 1, it was on to Riddle 2. We found it blowing among the tumbleweed. SECRET RIDDLE #2 5. Add Secret Numbers 4 and 5 to find Secret Number 8. SECRET NUMBER 8 = ______ 6. Add Secret Numbers 4 and 6 to find Secret Number 9. SECRET NUMBER 9 = ______ 7. Add Secret Numbers 4 and 7 to find Secret Number 10. SECRET NUMBER 10 = ______ 8. Add Secret Numbers 5 and 6 to find Secret Number 11. SECRET NUMBER 11 = ______ 9. Add Secret Numbers 5 and 7 to find Secret Number 12. SECRET NUMBER 12 = ______ 10. Add Secret Numbers 6 and 7 to find Secret Number 13. SECRET NUMBER 13 = ______ 41 9999999999999999999 11. Add Secret Numbers 4, 5, 6, and 7 to find Secret Number 14. SECRET NUMBER 14 = ______ Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Well, we were so busy goin’ along there, addin’ up the Secret Numbers that we didn’t realize we’d fallen in a pit of poisonous snakes. And we surely didn’t hear Tex’s EVIL ARCH RIVAL, Miles Portly, sneak up on us. “Tex,” Portly snickered, “I want to thank you and your scrungy dog for leadin’ me straight to the treasure.” “Treasure?!” we said. And sure enough, underneath all the snakes was a treasure chest with a combination lock. Written on the chest were these words: Salsa, Cha-cha, do the Mambo Combo: Here’s how you get the Secret t The lock will open without a figh t-left-right... If you go this many turns, righ bers 1 and 11 Right: The sum of Secret Num 7 Left: Now add Numbers 10 and 9 and Right: Add Secret Numbers 14 . And everything will turn out fine 12. Which combination number did Miles get correct? ______ 13. Which numbers did Miles get wrong? ______ 14. What is the correct combination? ______ Well, after old Miles tried out the wrong combination, a whole bunch of stuff happened: the pit caved in, the snakes got loose, et cetera, et cetera. In the end, old Miles found himself in a bucket of mud. Haw, haw. Meanwhile, Tex and I got the treasure. But being the nice, kindly hombres we are, we decided to give it all away. We pretty much ended up with what we began with: nothin’ much but a good adventure. Old Miles Portly demanded we give him the Secret Numbers. Which we did. But Tex wasn’t concerned. “Don’t worry,” she said. “Old Miles will make a mistake.” Which he did. Old Miles figured that the numbers for the combination lock were 17, 25, and 44. 42 SKILL 14: Subtracting Mixed Numbers with Unlike Denominators Name Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources SCENE 1: A beautiful park. A boy and a girl carry a picnic basket. GIRL: This is going to be a great picnic. 99999999999999999 Billy Doogan, Roving Weather Man NARRATOR: Overhead, a big, black rain cloud blocks out the sun. BOY: Oh, no! Our picnic will be ruined! park. We’ll reach a high of 82 and a 3 low of 68 _4 degrees today. Normal 1 _ high is 83 3 degrees. Normal low is 1 69 degrees. I expect 1 _4 inches of rain from that big black cloud. That will give us a total of 10 inches of rain so far this month. BOY: B-b-but how do you know all this? BILLY: I’m Billy Doogan, Roving Weather Man! I roam around, doing what I can, helping people with their weather problems. NARRATOR: Suddenly, Billy disappears. BOY: Who was that guy? GIRL: He’s Billy Doogan, Roving Weather Man. BOY: I know, but who was he really? GIRL: Look, we can’t talk now. We’ve got to get out of here. It’s going to rain! NARRATOR: Suddenly, a kid in a super-hero suit appears. GIRL: Who are you? BILLY: I’m Billy Doogan, Roving Weather Man! BOY: Huh?? PROBLEMS 1. How many degrees does Billy expect the temperature to rise this afternoon? ______ BILLY: Here’s my complete forecast: 1 Currently, it’s 76 _2 degrees in the 43 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 3. What is the difference between the current temperature and the expected low? 4. What is the difference between the normal high and the normal low? 5. Find the difference between today’s expected high and the normal high. 6. Find the difference between today’s expected low and the normal low. 9999999999999999999 2. What is the difference between today’s expected high and low? SUBTRACTING MIXED NUMBERS WITH UNLIKE DENOMINATORS ______ 2 Subtract 5 65_ from 10 3_ : 1. Write both mixed numbers with a common denominator. ______ – 2. Rename the mixed number you’re subtracting from, if necessary. ______ 7. How many inches of rain have fallen this month before today? ______ 10 _23 = 10 _46 5 _56 = 5 _56 – 10 _46 = _ 9 10 6 5 _5 = 5 _56 – 3. Subtract the whole numbers and fractions separately. ______ ______ AY ONE W IT TO DO 6 – 4 _56 SCENE 2: Man and woman in a movie theater, waiting for a movie to start. MAN: Oh my gosh! We left the ice cream in the trunk of the car. We have to take it home or it’ll melt. WOMAN: Isn’t there anything we can do? NARRATOR: Suddenly, Billy Doogan appears! GIRL: Who are you? 44 9999999999999999999 BILLY: I’m Billy Doogan, Roving Weather Man! But don’t worry. The 3 temperature is now 30 _4 degrees. Your ice cream won’t start to melt until the temperature reaches 32 degrees. Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources WOMAN: Do you mean we can stay and watch the movie? BILLY: That’s right. My forecast 1 calls for a high of 34 _2 degrees, but your movie will be long over by then. MAN: Thank goodness. You’ve saved us, Roving Weather Man! BILLY: Hey, I’m only doing my job. 2 By the way, winds are calm at 4 _3 miles per hour. They should increase to about 6 miles per hour tonight. My overnight forecast calls 2 for _3 of an inch of snow. This should give us a total of 5 inches on the ground. Good day, and good weather to you. NARRATOR: Billy disappears. MAN: What a great guy! WOMAN: I wonder why he does what he does? MAN: Beats me. Oh well, let’s sit back and enjoy our movie. MORE PROBLEMS 8. How many degrees will it have to warm up before the ice cream starts to melt? 9. How many degrees above freezing will today’s high be? ______ 10. What is the difference between the current temperature and today’s expected high? ______ 11. By how many miles per hour does Billy predict the wind speed will increase? ______ 12. How many inches of snow are on the ground right now? ______ 13. How many inches of snow would have to fall to have a foot of snow on the ground by tonight? ______ ______ 45 SKILL REVIEW: Quiz 2 Name 99999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Ultra-Workout, Too! Howdy, folks. This is Woovis the dog, your host for Ultra-Workout, Too! Now, folks often ask me, “How do you know when you’ve solved a problem correctly, Woovis?” The answer is simple. Just look down at your tail. It usually wags when the answer is correct. Of course, if you don’t HAVE a tail, then maybe you better think of somethin’ else. Like checkin’ your answer or somethin’. Anyway, go ahead and do these problems. And for goodness sakes— pay attention to your tail! 4 7 _ _ 1. Add 15 + 15 . ______ _4 and _1 . _______ 3. Find the sum of 9 6 4. Here’s one of my favorite recipes. I call it Cheez-Whip Soo-Flay a là Woovis: Mix _1 cup of flour, _3 cup of 4 8 1 smashed dog biscuits, and _3 cup of Cheez-Whip. How many cups does this recipe make? ______ 3 _ _3 . 5. Subtract 4 10 from 7 5 ______ 6. I can smell Nacho-Flavored Cheez-Whip from 6 blocks away. I can smell Regular Cheez-Whip 2 from only 4 _ blocks away. How 3 much closer do I need to get to smell Regular Cheez-Whip? ______ 7 _7 to 8 _ 7. Add 4 8 12 . ______ 8. Did you know you can use Cheez-Whip to power your car? Suppose you filled 1 your gas tank with 15 _ gallons 4 2. I love Cheez-Whip. Suppose 7 I found a 2 _ 12 pound can of it. I would 5 probably eat 1 _ pounds of Cheez-Whip. Then you drove around of it and save the rest. How gallons would be left? 12 much would I save? for a while and burned 3 up 6 _ gallons. How many 5 ______ 46 ______ SKILL 15: Multiplying Fractions by Whole Numbers Name 99999999999999999 Emily Taproot, Fractional Poet Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Hello. I’m Emily Taproot, Fractional Poet. And today I’d like to share some of my favorite fractional poems with you. What do fractions mean to me? Read this poem and find out. The Power of Fractions I am fraction Hear me roar. In the kitchen Through the door. Someone dropped me On the floor. By the way... What’s _56 of 54? _5 of 54? 1. Well, what is 6 ________ If you don’t know, try this example. ONE W TO DO AY IT FINDING A FRACTION OF A WHOLE What is _3 of 10? 5 3 10 _ x _ 5 1 1. Write the whole number as a fraction. Then write the problem as a multiplication expression. 2. Simplify if you can. 1 3. Multiply the numerators together and the denominators together. 3 x 10 _ _ 5 1 3 x _ 2 _ 1 1 2 = 6 _ 1 Fractions can reveal our inner feelings: Inner Feelings I’m sad. I’m blue. What’s _34 of 32? I don’t know. How about you? _3 of 32? 2. Well, what is 4 ________ Fractions can tell us about love... Fragments of Love A cloudy day. My love and I walk by the bay. And then, he surprises As a fundamental question arises: 3 _ “What’s 10 of 90?” he inquires. My heart burns with a thousand fires. 3 of 90? ________ 3. OK, what is _ 47 10 9999999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Fractions can tell us about our deepest hungers... But sometimes you just want to have fun: Thoughts on a Spring Day Some Poems Are Just Plain Fun You know what I’d like? To solve a fraction While riding my bike. Now that would be fun. Like: What’s _13 of 21? Or: What’s _38 of 24? Dare I do more? Or shall I fall asleep and start to snore? _1 of 21 4. What is 3 and _3 of 24? 8 ________ The Joy of Fractions The satisfaction I get from a fraction Is something that sticks... All the way from my feet To the bottom of my appendix. So tell me, please... What’s _23 of 36? _2 of 36? ________ 5. So what is 3 ...and our biggest frustrations. Oh drat. Oh gee. What’s _13 of 33? I don’t know. Can you tell me? _1 of 33? 6. Well, what is 3 8 Thank you for sharing these poems with me. Here’s a little going-away gift for you. ________ ...our happiest joys... A Cry for Help Occasionally a poem is just plain fun. But this ain’t the one. This one is a bore: What’s _87 of 64? ________ 7. Well, what is _7 of 64? The End Oh wow. What fun. _2 of 21? 8. What’s 3 After you tell me You’ll be done. ________ 48 ________ FINDING A FRACTION OF A WHOLE Bonus! Yet another way to do it! (This way uses a picture.) What is _23 of 6? 1. Divide 6 into thirds. _1 3 _1 3 _ of 6 = 4 2. 2 3 2 of 6 = 4 _ 3 _1 3 SKILL 16: Multiplying Fractions Name 99999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources The Frackie Awards JERR Y: LIVE from Hollywood, welcome to the Third Annual Fractional Academy Awards. I’m your co-host, Jerry Fragment. DEBBIE: And I’m Debbie Slash, your other co-host, reminding you that this year’s Frackies are brought to you by Common Denominator: When it comes to fractions, we’re the common denominator. JERR Y: As you’ll recall, Cheese Man is the story of a man whose entire body turns to cheese. DEBBIE: The local townspeople think Cheese Man is evil. But all Cheese Man really wants is a hug from Vickie Ganoosh. Here she is in a powerful fractional scene: Scene from CHEESE MAN: THE MOVIE VICKIE GANOOSH: Oh, Cheese Man. I DO love you. Before, I only 2 1 3 loved _3 of _2 of you. Later, I loved _4 of _2 of you. But now, I love all of you. 3 4 7 Or at least _5 of _8 of you. CHEESE MAN: Me never so happy in whole life. Me not think so good because brain made of cheese. But if 5 3 me could think, _6 of _4 of me would feel happy. That some powerful happiness, Vickie Ganoosh. JERR Y: Well, Debbie, without any further ado, let’s get to the awards. This first Frackie goes to the Best Supporting Fraction in a Comedy, Drama, or Action Sequence. DEBBIE: Our first nominee is Vickie Ganoosh in Cheese Man: The Movie. 49 FINDING A FRACTION OF A FRACTION 1 of _ 1? What is _ 2 AY TO ONE W OUT IT AB THINK 2 1. Start with _12. 2. Take _12 of that. 3. That shows you that _12 of _12 is _14. _1 2 _1 4 _1 of _1 = _1 4 2 2 _1 2 9999999999999999999 Scene from (Thunderous applause from audience) 1. Befor e, V ickie only _2 of 1 _ loved 3 2 of the Cheese _2 of 1 _ Man . What is 3 2 ? Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources _3 2. Later, V ickie loved 4 _2 of the Cheese Man. of 3 _3 of _2 ? What is 4 3 3. What fraction of the Cheese Man does V ickie love now? 4. What fraction of the Cheese Man feels happy? ONE W TO DO AY IT MULTIPLYING A FRACTION BY A FRACTION What is _3 x _5 ? 5 6 1 1. Simplify if you can. 1 2. Multiply the numerators together and the denominators together. 3 x _ 5 _ 5 6 _1 x _1 1 2 1 = 2 1 =_ 2 JERR Y: (Sniffs away a tear.) Wasn’t that wonderful, Debbie? Our second Frackie nominee comes from the comedy Dull as Dirt. DEBBIE: Dull as Dirt is the story of two guys who are dull as dirt. They’re so dull that their dullness becomes a secret weapon for the FBI. Here’s a scene where an FBI scientist interviews them: DULL AS DIRT SCIENTIST : Think real hard on 3 of a cookie. What this one. I have _4 _ 1 _ 3 is 2 of that 4 ? DULL GUY: Huh? 3 SCIENTIST : Try this one: I have _5 _ 5 of a pizza. What’s 6 of that? OTHER DULL GUY: Whuh? _ SCIENTIST : OK, what’s _5 of 16 8 25 of a pie? BOTH DULL GUYS: Huh? (Curtain goes up. Another thunderous applause) 5. The scientist asked _1 of _3 of a cookie what 2 4 was. What is it? _3 of _5 6. What is 5 6 of a pizza? 6 _5 of 1_ 7. What is 8 25 of a pie? DEBBIE: Our third nominee comes from the exciting thriller, Murder on the Fraction Express. Listen as bungling detective Lon Largely and his sidekick Pokey figure out who the criminal must be. 50 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources MURDER ON THE FRACTION EXPRESS 9999999999999999999 Scene from LON LARGELY: (Fingers his slim mustache) Wait! Alice was in the par2 of an hour, right? So she lor for _3 and Bob must have been drinking 1 tea for _2 of that time. Meanwhile, Carmen and Ron were on a walk 3 that lasted _4 of an hour. They were 5 out of sight for _6 of that time. POKEY: Which means the money was left unattended for only _1 6 of an _ 3 hour. If Digby spent 5 of that time playing the violin, it means that... LON: ...Monica Monroe MUST have done it. Brilliant, Pokey. Simply brilliant. (Curtain goes up. Another thunderous applause.) 8 . What ho ur did sp end in dri nking fra ction of an Alice and Bob t he pa rlor tea? 9. What fraction of an hour did Car men and Ron spend out of sight? 10. What fraction of an hour did Digby spend playing the violin? JERR Y: Wow! That was exciting. And now, the moment we’ve all been waiting for. Do you have the envelope, Debbie? DEBBIE: I sure do, Jerry. Oh my gosh! You’re not going to believe this, Jerry. It’s a three-way tie for the Frackie! JERR Y: Unbelievable! Vickie Ganoosh, the Dull Guys, and Lon Largely all win Frackies. Come on up here, everyone! (Thunderous applause as Vickie, the Dull Guys, and Lon walk up to the stage) 4 DEBBIE: Oh, no. We only have _5 of a minute for all 4 of them to give their speeches. What should we do? 1 JERR Y: Each person gets _4 of that _4 of a minute to speak. 5 DEBBIE: Great idea, Jerry. Good night, everyone! 11. For what fraction of a minute does each per son get to speak? 12. For how many sec onds does each person get to speak? (Hint: How many seconds ar e in a minute?) 51 SKILL 17: Reciprocals Name 9999999999999999 Emily Taproot’s Winky-Tinky Tigglesworth Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Hello. I’m Emily Taproot, Fractional Poet. Today I’d like to talk to you about reciprocals. Here’s a very small poem about reciprocals: “Reciprocal, reciprocal...” Ugh! Nothing seems to rhyme with the word reciprocal! Fortunately, it’s easier to find a reciprocal than to make up a poem about one. How do you find reciprocals? Easy. Just turn the number or fraction upside down. Here are some examples. FINDING RECIPROCALS ONE W A TO DO Y IT ANOT HER TO DO WAY IT Find the reciprocal of 3 3 1. Write the number as to a fraction. 2. Reverse the numerator and denominator. 3 _ 1 = 3 _ 1 _1 3 4 Find the reciprocal of _ 7 1. Just reverse the numerator and denominator 4 _ 7 7 _ 4 Hey wait. I just remembered a poem that is about reciprocals. Winky-Tinky Tigglesworth Winky-Tinky Tigglesworth Found the reciprocal of 1. “I turned it upside-down,” said Winky. “Hey, this is sort of fun.” Winky-Tinky Tigglesworth Computed the reciprocal of 50 “That’s good,” Winky’s mother said. “You’ll grow up fair and thrifty.” 52 9999999999999999999 Winky-Tinky Tigglesworth Got the reciprocal of 7 over 18 “It’s neither small nor big,” said Winky. “It’s kind of in-between.” Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Winky-Tinky Tigglesworth Found the reciprocal of 2. “I think I’m getting the hang of it,”he said. “Though the concept’s still quite new.” Winky-Tinky Tigglesworth Discovered the reciprocal of 3 over 8. “It’s a lot like flipping coins,” he said. “I think this is working out great.” Winky-Tinky’s fish was named “The Reciprocal of 4 over 9.” “It’s kind of an awkward name,” he said. “But I think he likes it fine.” Winky-Tinky Tigglesworth Got stuck on the reciprocal of 1 _2 3. “I feel so frustrated right now,” Winky said. “I’m at a loss for words.” Winky-Tinky was tired after finding The reciprocal of 1 over 8. “To you it might seem early,” he said. “But to me it’s very, very late.” “Fshew!” said Winky-Tinky _4 . As he found the reciprocal of 33 “I feel much better now,” Winky said. “Let’s have a cup of tea.” Find the reciprocals of the num bers and fractions in the poem 5. Recipr ocal of 1_78 : 6. Recipr ocal of _4: _______ 7. Recipr ocal of 1 3_2: 8. Recipr ocal of _1: _______ 9. Recipr ocal of _______ _______ 9 8 _4 33: _______ Her e ar e some bonus recipr ocals to find 10. Recipr ocal of 2 _1: _______ 11. Recipr ocal of 11_2 6 in simplest for m: _______ 12. Recipr ocal of 55_0 0 in simplest for m: _______ 2 Super Bonus 13. What is the recipr ocal of 3_2? _______ 14. What is the recipr ocal of your answer to pr oblem 13? _______ 15. What is the 5 recipr ocal of 7_ ? _______ 16. What is the recipr ocal of your answer to pr oblem 15? _______ 1. Recipr ocal of 1: _______ 17. Make up a rule about finding the recipr ocal of a r eciprocal. (Hint: See your answers to pr oblems 13 thr ough 16.) 2. Reciprocal of 2: _______ ____________________________________ 3. Recipr ocal of 50: 4. Reciprocal of _3: _______ ____________________________________ _______ ____________________________________ 8 53 SKILL 18: Dividing Fractions Name 99999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Louie Lewis: The Case of the Flipping Fractions My name is Louis Lewis. I’m a Fractional Detective. I specialize in fractional cases. That’s why they call me: LOUIE LEWIS Fractional Private Eye Sometimes an FPE gets a weird case. For example, the other day this guy Mopey Mulligan calls me up. Mopey’s a joker. Always trying to be funny. “Excuse me?” I said. “It’s the alphabet without a ‘C,’” he explained. “Long time, no C.’ Get it? No see?” “I get it,” I said. “So what’s up, Mopey?” “I’m in a jam, Louie,” he said. “Punky Pearson paid me a whole bunch of money to do these division problems.” “What’s wrong with division?” I asked. “You were always good at division, Mope.” “Yeah,” he said. “But this is FRACTIONS, Louie. Look at this sample problem that Punky did.” 2 _ 3 ÷ 4 _ 9 = 1 _21 “Hmm,” I said. “Are you sure this answer’s right?” “Positive,” he said. “You gotta help me figure this out, Louie. You just GOTTA.” Suddenly I noticed something Punky had written on the side of the page: “Hey Louie,” he said. “Long time, ABDEFGHIJKLMNOPQRSTUVWXYZ.” 54 2 _ 3 ÷ 4 _ 9 = 2 _ 3 x 9 _ 4 9999999999999999999 “What does it mean?” Mopey asked. And then it hit me. Punky was using the old reciprocal trick! “Of course,” I cried. “He just flipped and multiplied!” “Flipped and multiplied?” Mopey said. “What’s that? Sounds like a circus trick they do on the flying trapeze.” Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources “Not at all,” I said. “Just look at this example.” ONE W TO DO AY IT DIVIDING FRACTIONS 2 _ 4 What is _ 3 ÷ 9? 1. Find the reciprocal of the fraction you’re dividing by. Invert, or flip the numerator and denominator. 2 _ 3 ÷ 4 _ 9 = 2 x _ 9 _ 3 4 2. Then multiply as you would normally. 1 1 2 x _ 9 _ 3 4 3 = 2 3 _ 2 = 1 1 _2 “I get it,” Mopey said. “When you divide fractions you just FLIP and MULTIPLY. That’s how you divide fractions.” “Flip and multiply,” I said. “That’s the ticket.” Mopey was all smiles. “You’re the greatest, Louie!” he cried. “What do I owe you?” But I just shook my head. I didn’t need any reward. For me, just solving the case was reward enough. My job was done. You, of course, have one more job to do. You need to solve the problems below. Once you do that we can truly say: THIS CASE IS CLOSED. 1. 3_2 ÷ 9_4 = _1 1 ____2___ 7 2. 9_7 ÷ 1_ 8 = _______ 3 3. 8_5 ÷ 1_ 6 = _______ 6 4. 5_3 ÷ 2_ 5 = _______ 1 5. 8_7 ÷ 1_ 2 = _______ 9 6. 4_3 ÷ 1_ 6 = _______ 1 0 _ 7. 7_5 ÷ 2 1 = _______ 8. 6 ÷ 3_2 = _______ 9. 12 ÷ 4_3 = _______ 1 8 _ 10. 1_30 ÷ 2 5 = _______ 1 6 2 4 _ _ 11. 2 5 ÷ 35 = _______ 8 12. 3_2 ÷ 3_ 3 = _______ 9 5 _ 13. 11_ 6 ÷ 32 = _______ 2 4 _ _ 6 14. 4 9÷7 = _______ 3 3 _ _ 1 15. 1 24 ÷ 40 = _______ 55 SKILL 19: Multiplying and Dividing Mixed Numbers Name 99999999999999999 Officer Meg O’Malley: Episode 2 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Hi. Meg O’Malley here. Welcome to another episode of The Fraction Police. See that kid? We’ll call her Wendy. Wendy was a kid who thought she knew all the answers. She was smart. She was tough. She was building a tree house. When it came time to order wood for the roof, the lumber store clerk asked, “How many square yards do you want?” As I said, Wendy was smart. She looked at her plans. Then she 2 _41 yd. thought, “I’ll multiply Tree house _1 yd. 1 _1.” 1 3 2_ by 1 4 3 roof Which was correct. But here’s where she made her big mistake. She multiplied the whole numbers and fractions separately. 2 _1 WEN BIG M DY’S ISTAK E 4 x 1 _1 3 2 _1 12 That might sound right. But it’s WRONG! It doesn’t work! It’s a FC— a Fractional CRIME! You can probably guess what happened from here. Wendy ordered the wood. The wood was the wrong size. And guess what happened when it rained on Wendy’s tree house? WENDY GOT WET!!! Is there a moral to our story? Don’t build tree houses in rainy places, perhaps. But more importantly, don’t commit FCs or fall into BFHs—Bad Fractional Habits. Learn how to multiply mixed numbers correctly. 56 _1 1 Multiply: 2 _ 4 x 1 3 1. Write the mixed numbers as improper fractions: 9 x _ 4 _ 4 3 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 3 2. Multiply as you normally would: 9 x _ 4 _ 4 3 = 1 = 1 3 _ 1 = 3 9999999999999999999 ONE W TO DO AY IT Don’t worry about Wendy. We straightened her out. Fixed her roof, too. When she multiplies fractions now, she does it the RIGHT WAY. But don’t be fooled. What happened to Wendy could happen to you. I’ve seen it a thousand times. 1. 1 3_2 x 1 5_1 = 2. 1 4_3 x 1 3_1 = 1 3. 3 _ x 1 _7 = _______ 4. 1 6_1 x 9 = 5. 2 9_2 x 3 5_3 = 6. 2 _3 x _4 = _______ 3 4 • Be on the lookout for SFTs— suspicious fractional tricks. • Report all FCs—fractional crimes— to your local fractional police. • And for Pete’s sake, always WRITE MIXED NUMBERS AS IMPROPER FRACTIONS when you multiply! _______ 8 _______ _______ 5 3 4 _ _ 7. 1 1 15 x 121 = 3 _ _1 8. 1 1 27 x 1 8 = 1 9. 6 _1 x 1 1_ = _______ 3 2 3 _ 10. 3 2_ 0 x 1 27 = _______ 8 _______ _______ 21 Bonus Tip! This method works for DIVISION, too. Check out this example: How can you avoid turning Wendy’s UHS (Unhappy Story) into your own UHS? Simple. Just do these problems —and read my handy tips below. Straight Talk from Meg O’Malley, Fraction Cop _______ AY ONE W IT TO DO _1 3 Divide: 1 _ 7 ÷ 3 3 1. Write the mixed numbers as improper fractions. 3. Substitute the reciprocal of the number you’re dividing by. 4. Multiply normally. 1 10 _ ÷ 10 _ 7 3 = 10 3 _ x _ 7 10 = 10 3 3 = _ _ x _ 7 10 1 7 Now try these problems: 11. 2 5_2 ÷ 1 5_1 = _______ 1 12. 2 1_ 0 ÷ 14 = _______ 57 SKILL 20: Multiplying and Dividing Mixed Numbers Name 99999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Yucky Cooking with Mr. Pierre Welcome to Yucky Cooking. I’m Mr. Pierre. People ask me all the time, “What is Yucky Cooking, Mr. Pierre?” I tell them that Yucky Cooking is more than just cooking with yucky food. It’s a whole way of putting together poor-quality ingredients so they look yucky, taste yucky, and smell yucky. Now suppose you’re having a dinner party for people you don’t like so much. Do you serve them your best recipes? Of course not! You serve them Yucky Cooking. Here’s a good recipe for a not-sospecial appetizer which I call Sad Sack Salad: Sad Sack Salad In an old sack, mix: 1 •2_ 2 ounces wilted brown lettuce 1 •1_ 8 ounces egg shells 3 •1_ 8 ounces coffee grounds Pour into a pan. Heat 2 hours until it turns to a thick mud and sticks to the pan. Chip off with a chisel or screwdriver. 1. In all, how many ounces of ingr edients ar e in Sad Sack Salad? 2. Suppose you divided the Sad Sack Salad into 4 equal portions. How many ounces would each portion contain? _ of 3 3. S up po se y ou pu t 5 the sa la d i n a b ow l. Ho w man y o un ce s of sa la d wou ld be in t he bo wl ? 4. How many 6_5-ounce servings could you get fr om the r ecipe? 58 9999999999999999999 Here’s a way to make a delicious ham not worth eating. I served this to a guest once and she ran screaming from the table. Now that’s Yucky Cooking! I call this recipe Shriveled Ham Jubilee: Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Shriveled Ham Shriveled HamJubilee Jubilee No bad meal is complete without a bad dessert. Here’s an especially awful dessert that uses up all your unwanted leftovers. I call it Nuked Ice Cream Surprise: Nuked Ice Cream Nuked Ice Cream Surprise Surprise In a tightly-covered plastic dish, put: Place one ham in an Place one good-sized good-sized ham in old an bucket. Cook Cook for several days at days a high old bucket. for several temperature until it shrivels to a at a high temperature until itfraction of itstooriginal size. Ham done shrivels a fraction of itsisoriginal when Ham foul black smoke comes out of size. is done when foul black the bucket. smoke comes out of the bucket. 5. Cooking for 2 days shrinks a 3 4_3-pound ham to 3_2 its original size. How many pounds is this? 6. Cooking for a week shrinks a 3 4_3-pound ham to 11_0 its original size. How many pounds is this? 7. To dry out the ham faster, Mr. Pierre likes to divide the ham into _3-pound pieces before cooking. 4 How manypiecescan he make fr om a 3 4_3-pound ham? _ po und 3 8. Say Mr. Pierr e cuts a 3 8 _ - po u n d p ie c e s . Ho w h a m i n to 1 1 8 m a n y p ie c e s w il l h e h ave? • 1 ounce of ice cream (any flavor) 5 •_ 6 ounces of leftover Sad Sack Salad _ 1 • 1 12 ounces of leftover Shriveled Ham Jubilee Microwave until mixture explodes. Scrape off walls of microwave. Top with soggy potato chips. 9. How many total ounces of ingr edients does the r ecipe call for? 10. If the dessert is divid ed evenly into 5 portions, how many ounces will each portion weigh? 11. Suppose you divided the dessert into portions 5 that weigh 1_ 2 ounces each. How many portions would you have? 12. Suppose you divided the dessert into 14 equal portions. How much would each portion weigh? 59 SKILL 21: Multiplying and Dividing Fractions Name Hi. I’m Martha Crunch, your personal fractions trainer. And this is Steve. Listen to what folks are saying about Martha Crunch’s Amazing Fraction Workout V ideo. BEFORE My imagination was dull as a butter knife. Larry G. I was boring. How boring? Sometimes I even put myself to sleep. Rosa M. 999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Martha Crunch and Her Amazing Fraction Workout Video 60 AFTER I feel great! My imagination slices and dices through ideas like a knife through cheese. Larry G. Rosa M. Talk about AMAZING! My thoughts are 35 percent more interesting. What a difference! 99999 Sound too good to be true? It’s NOT. For a limited time, you too can enjoy the benefits of Martha Crunch’s Amazing Fraction Workout V ideo in the comfort of your home. For a limited time only, you can try WORKOUT #1 of the Amazing Fraction Workout ABSOLUTELY FREE! If you don’t absolutely love it, just return the unused fractions for a COMPLETE MONEY-BACK REFUND.* WORKOUT #1 DIRECTIONS: (1) Strap on fraction safety helmet. (2) Adjust safety goggles over eyes. (3) Use brain to solve problems. 9999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Ra-a-ah! Ee-e-urk! Where do I sign up? Right here, Steve. 1. 3_2 x 4_3 = __________ _1 = 10. 4 4_3 ÷ 1 4 __________ 2. 3_2 ÷ 5_2 = __________ _7 ÷ 1 _3 = 11. 8 4 __________ 3. 4_3 x 9_8 = __________ 12. 8 6_1 x 3 7_3 = __________ 4. 5_3 x 2 2_1 = __________ 7 13. 5 9_5 ÷ 1 1_8 = __________ _2 ÷ 1 _1 = 5. 6 3 9 __________ 1 2 14. 1 3_9 ÷ 1 1_3 = __________ 3 6. 3 3_2 x 2_2 = __________ 11 13 15. 1 2_5 x 1 2_7 = __________ 7. 6_5 ÷ 10 = __________ Wasn’t that great? 8. 12 x 2 3_2 = __________ Well, goodbye everyone! See you next time. 9. 16 ÷ 2 5_2 = __________ Say Ra-a-a ee-urk, Steve. 1 2 _ 1 Ra-a-ah! Ee-e-urk! Refund applies only to left-handed people who have blue hair, wear size 17 2 shoe, currently reside in the continent of *Antarctica and own 2 or more aardvarks as pets. 61 SKILL REVIEW Quiz 3 Name Ultra-Workout 3 • • • • • • The Cheese Man The Dull Guys Jerry Fragment V ickie Ganoosh Lon Largely Pokey And of course, me, Debbie Slash. And so, without further ado, I give you... Ultra-Workout 3! 99999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Live from Hollywood, I’m Debbie Slash. And this is...Ultra-Workout 3! Starring, in alphabetical order: 1. Hi, I’m Jerry Fragment, movie mogul and producer. When I’m not making multi-million dollar movie deals, I like to do problems like this one. Find _1 of 36. Go ahead and try it. 4 And hey, let’s do lunch soon! 2. Hello, I’m the Cheese Man, star of the blockbuster Cheese Man: The Movie. Our movie had a budget of $40 million. Two-fifths of the budget went to mega-star Vickie Ganoosh. H o w m u c h mo n e y wa s V i c k i e p a id? 3. Hi, we’re the Dull Guys, stars of The Dull Guys. You know, when we’re not acting in blockbuster Hollywood megahits, we like to unwind by doing problems like this: 2 3 Find the pr oduct of 1_1 x _7. 4. Hey, I’m Vickie Ganoosh, one of the stars of Cheese Man: The Movie. One of the most exciting moments in the movie 7 was when a giant cheese slicer cut off _8 of a huge block of cheese weighing 16 _ ton. How big a block did 21 the cheese slicer cut? 5. Hey there, movie star Lon Largely here. Bet you didn’t recognize me without my movie make-up! But here’s one thing you will recognize—a great problem: Find the quo _2 ÷ _3. tient of 3 4 6. Howdy. Pokey here, Lon Largely’s co-star in Mystery on the Fraction Express. Our _1 hours. How movie lasted 2 4 _5 of long did it take to show 6 the movie? 7. Hi, it’s the Cheese Man again. Did I tell you that the screenplay for Cheese Man: The Movie. was inspired by a famous photograph called “Underground Velveeta”? 1 The photograph measures 6 _4 1 inches by 3 _5 inches. What is the area of the photograph? That’s about all the time we have. So long from the greatest Workout of them all... 62 Ultra-Workout 3! SKILL 22: Multiplying Probabilities Name 99999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources The Critics Studies show that movie critics use the same words over and over again. This list shows the top 10 words used in positive reviews. It also shows the probability of each word appearing in a review. For example, the probability _3. That of the word wild apearing is 7 means it is likely to appear in three out of every seven reviews. Top 10 Positive Review Words wild weir d classic riot blast action-packed side-splitting rip-snorting roller coaster ride knock-down, drag-out 3 _ 7 7 _ 18 10 _ 27 3 _ 11 2 _ 5 5 _ 12 3 _ 10 2 _ 9 _1 6 2 _ 7 Probabilities are independent of each other. So to find the probability of more than one positive word appearing in a review, you need to multiply the probabilities of each word. For example, the probability that a movie will be called a “side-splitting action-packed blast” is: 3 _ 10 x probability of sidesplitting 5 _ 12 probability of actionpacked 2 30 = _1 x _ = _ 5 600 20 probability of blast What is the probability that the movie Let Them Eat Soup will be called: 1.wild? ________ 2. a wild roller coaster ride? ________ 63 ________ What is the probability that the movie Waiter, There’s an Aardvark in My Soup will be called: 4. a rip-snorting, side-splitting riot? ________ 9. a rip-of f? ________ 10. a cheap rip-of f? ________ 11. a stupid turkey? ________ 12. a pointless, icky turkey? ________ What is the probability that The President’s Soup Is Cold will be called: Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 9999999999999999999 3. rip-snorting and side-splitting? 5. a blast? ________ 6. an action-packed blast? ________ 7. a knock-down, drag-out, action-packed blast? ________ 8. a side-splitting, knock-down, drag-out, action-packed blast? ________ Top 10 Negative Review Words cheap lame pointless stupid icky cheesy crummy turkey rip-of f third-rate rubbish 5 _ 18 3 _ 8 3 _ 25 4 _ 15 5 _ 12 8 _ 25 _1 6 5 _ 32 2 _ 5 3 _ 16 What is the probability that the movie The Chicken Noodle Man will be called: 13. stupid, thir d-rate rubbish? ________ 14. stupid, icky, and crummy? ________ 15. cheesy, thir d-rate rubbish? ________ 16. icky, stupid, thir d-rate rubbish? ________ BONUS QUESTION: Which is most likely to appear in a r eview: ripof f, side-splitting, or stupid? How can you tell? ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ ____________________________________ 64 SKILL 23: Ratios Name PART 1: BEGINNINGS 99999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Arnold Guck: Man or Myth? “It smelled like garlic and turned your teeth black,” Guck explained. Guck was soon fired from the toothpaste company. He came home a broken man. Slowly, Guck began to admit that he had only one true talent in the world: to make disgusting things. And to be able to compare one disgusting ingredient to another, he’d have to learn how to use ratios. For example, the ratio of baking soda to salsa in Tar-Gum toothpaste was 4 parts baking soda to every 8 parts salsa. “He was a messy child,” says Vivian Guck, Arnold Guck’s mother. “He ate messy, he drank messy. All he did was make messes.” At age five, Guck made mud pies. He mixed 3 scoops of mud with 9 scoops of gravel and 12 scoops of water. At age 20, Guck got a job at a toothpaste company. Soon after that, he created Tar-Gum Toothpaste. The toothpaste contained 4 parts baking soda, 6 parts black licorice gum, and 8 parts Extra Hot Garlic Salsa. Tar-Gum Toothpaste was not a success. 65 WRITING RATIOS How can you write the ratio 4 to 8 mathematically? 1. Write it with words: 4 to 8 2. Write it with a colon. 4:8 3. Write it so it looks like a fraction. 4_ 8 4. Simplify, if possible. 4 to 8 = 1 to 2 4:8 = 1:2 4 = _1 _ 8 2 AY ONE W IT TO DO 9999999999999999999 1. The ratio of mud to gravel in Guck’s mud pies was 3 to 9. Write this ratio three dif ferent ways. __________ __________ Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 2. Write the ratio in simplest for m. __________ __________ 3. The ratio of gravel to mud was 9 to 3. Write the ratio in simplest for m. __________ 4. What is the ratio of water to mud in Guck’s mud pies? Write the ratio using the word to.. Make sure it’s in simplest for m. __________ 5. What is the ratio of baking soda to black licorice gum in Tar-Gum toothpaste? Write the ratio as a fraction. Make sure it’s in simplest for m. __________ 6. What is the ratio of salsa to baking soda in Tar-Gum? Write the ratio with a colon. Put it in simplest for m. __________ 7. What is the ratio of salsa to black licorice gum in Tar-Gum? Write the ratio any way you want, as long as it’s in simplest for m. __________ PART 2: THE LOST CAT For a while, Guck gave up his work. Then one day his cat got lost. To lure it back, Guck mixed 12 milliliters of vinegar with 8 milliliters of rotten fish juice. The result was a powerfully bad-smelling concoction. Within an hour, it attracted not only Guck’s cat, but a half dozen other garbage-loving cats and dogs in the neighborhood. It also attracted me. I’m Warren Vuss, a scout for Wow! Inc. We’re the world’s leading maker of plastic puddles, fake garbage, and other such products. “Young man,” I told him, “I’m gonna make you rich!” “You are?” Guck said. The rest, as they say, is history. Guck’s first big success for Wow! Inc. was called Fabulous Guck. To make Fabulous Guck, he mixed 3 ounces of gunk with 6 ounces of sludge and 8 ounces of muck. The result was a greasy, grimy mess. It made you feel sick just to look at it. Touching it made your skin crawl. But that wasn’t all. Fabulous Guck had the most nauseating smell I’d ever come across. And I’ve been in this business 35 years. Needless to say, kids loved it. It outsold the other top-selling slime product by a 2 to 1 ratio. In other words, stores sold two Fabulous Gucks for every one of the other top-selling slime. In simplest for m, what is the ratio of... 66 9999999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 8. ...vinegar to rotten fish juice in Guck’s cat mixture? __________ 9. ...gunk to sludge in Fabulous Guck? __________ 10. ...sludge to muck in Fabulous Guck? __________ 11. A store sold 10 cases of the other top-selling slime product. How many cases of Fabulous Guck would you expect it to sell? (Remember: FG outsold the other top-selling slime product 2 to 1.) __________ 12. Suppose 40,000 cases of the other top-selling slime product were sold last year. How many cases of Fabulous Guck were sold? __________ PART 3: THE MAN WITH THE GOLDEN TOUCH From there, Guck had one hit product after another. First there was Fabulous Guck. Then Plutz. Then Yellow Yetch. Then came Guck’s biggest hit of all: Totally Gross Guck. This was the greatest product I’ve ever sold. It was disgusting. It was revolting. But it was also great fun. It outsold Crudd by 5 to 2. Before long, both Arnold Guck and I were voted into the Disgusting Products Hall of Fame. I’ll never forget the induction ceremony. I spoke first. Then Guck got up and started talking. All of a sudden, someone dumped a huge vat of Totally Gross Guck over his head. For a moment, Guck was speechless. His head was covered with the stuff. His suit was ruined. Then he started to laugh. We all laughed. It was a great moment in the history of disgusting things. 13. A stor e sold 20 boxes of OozeJuice in one week. How many boxes of T otally Gr oss Guck would you expect that it sold? __________ 14. A stor e sold 25 boxes of Totally Gr oss Guck in one week. How many boxes of Crudd would you expect that it sold? __________ 15. A stor e sold 20,000 boxes of Totally Gr oss Guck in a year. How many boxes of Ooze-Juice would you expect that it sold in that time? How many boxes of Crudd? __________ Totally Gross Guck outsold other ooze products by wide margins. It outsold Ooze-Juice by a 4 to 1 ratio. 67 SKILL 24: Equivalent Fractions and Decimals Name _ 7 10 9999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Enid the Magnificent, Part 1 “I don’t know,” Hugo’s father gulped. Enid went on to change many decimal numbers to fractions. Can you duplicate this astounding feat? Here’s how: CHANGING DECIMALS TO FRACTIONS 1. Find the decimal place farthest to the right. Hugo was twelve when his father took him to the circus. He saw the strong man, the dancing bear, the clowns, and so on. But the part he liked best was Enid the Magnificent. 2. Identify that decimal place. 3. Write the decimal as a fraction or mixed number, using that decimal place as the denominator. “Velcome!” she said, as they entered her dark and mysterious tent. “I am Enid the Magnificent. I can change any decimal number to a fraction. Any number at all!” The audience laughed. In those days, people never changed decimal numbers to fractions. It just wasn’t done. “How about 0.7,” a man cried. “Let’s see you change that to a fraction, Enid the Magnificent!” “The number 0.7 as a fraction is _7 ,” 10 Enid said coolly. A hush came over the room. “How did she do that?” Hugo asked his father. AY ONE W IT TO DO 5.632 10th 100th 1000th 5.632 = 632 _ 5 1000 Now you try it. Write each decimal number as a fraction or mixed number. 1. 3.2 = _______ 6. 24.09 = _________ 2. 0.4 = _______ 7. 0.004 = _________ 3. 5.89 = ______ 8. 13.001 = ________ 4. 64.8 = ______ 9. 562.029 = ______ 5. 0.05 = ______ 10. 37.040 = ______ 68 9999999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources After that, things got very strange indeed. People kept shouting numbers. And Enid kept changing them to fractions. Can you write these fractions as decimals? “It’s a trick!” cried one man. “I want my money back!” 7 7 17. 1_ 12. 1_ 00 = ___________ 0 = _________ But it wasn’t a trick. Enid did it again and again. Finally, a woman 3 _ to a said, “Let’s see you change 10 decimal!” 8 23 18. 41_ 13. 1_ 00 = _________ 00 = ________ “A fraction to a decimal!” someone shouted. “That’s impossible!” 37 25 20. 21_ 15. 1 1_ 000 =________ 00 = ______ “SILENCE!” replied Enid the Magnificent. Through all this, Hugo’s father sat quietly. He was a stern man. He had known few pleasures in life, but fractions were one of them. Hugo’s father loved fractions. But he also believed in right and wrong. And he’d always thought it was wrong to change one kind of number to another. Then, calm as can be, Enid turned 3 _ into 0.3. the fraction 10 The place exploded into an uproar. Once again, Enid had done the impossible. She had changed a fraction to a decimal. You can do it, too. Here’s how: ANO WAY TTHER O DO CHANGING DECIMALS TO FRACTIONS 1. Make sure the denominator of the fraction or mixed number is a power of 10. 2. Draw lines that stand for each place in the denominator. 3. Fill in the blanks with the numbers in the numerator. 8 429 _ 1000 _.___ 1 10th 100th 1000th 8 . _4 _2 _9 _ _ 41 9 16. 6 13 11. 1_ 000 = ________ 0 = _________ 3 5 19. 1_ 14. 2 1_ 000 = _________ 0 = _______ But now he wasn’t so sure. “Your tricks are good,” Hugo’s father said to Enid. “They are not tricks,” replied Enid. “Change _3 to a decimal,” he said 8 calmly. The whole room gasped. To our left, one man actually fainted and had to be carried away. To change a frac3 tion like _ 8 — a fraction with a denominator that WASN’T a power of 10—to a decimal was—well, at that time, it was just unthinkable. Could Enid the Magnificent do it? Find out the thrilling conclusion of this story on page 70 in Enid the Magnificent, Part 2. 69 SKILL 25: Equivalent Fractions and Decimals Name Hugo, a young boy, had just witnessed an amazing display of fractional power (see page 68). Was Enid the Magnificent for real? Could she really do things with numbers that no one else could do? Or was her power just a trick? 9999999999999999 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Enid the Magnificent, Part 2: Enid Does the Unthinkable Hugo would find out when his father gave Enid the Magnificent the ultimate challenge—to change the fraction 8_3 to a decimal. Could it be done? Enid calmly announced the answer: 3 “The fraction _ 8 is equal to 0.375.” No one in the room could believe it. There was shouting. There was stomping. People from the audience demanded that Enid explain how she had done what she had done. ONE W TO DO AY IT HERE’S ENID’S METHOD: 1. Divide the denominator (bottom) into the numerator (top). 2. Attach zeroes if you need them. Divide. 8 3 0.375 8 3.000 Can you write these fractions as decimals? (Round repeating decimals to the nearest thousandth.) 70 1. 2_1 = _______ 6. 8_3 = ________ 2. 5_2 = _______ 7. 8_5 = ________ 3. 4_3 = _______ 8. 7_2 = ________ 4. 5_4 = _______ 7 9. 1_ 1 = ________ 5. 9_2 = _______ 9 10. 12_ 0 = _______ 9999999999999999999 Hugo remembers little after that. People shouted. The goons in the audience grew louder and louder. Finally, they rushed the stage. The tent started to fall. Suddenly, all was in darkness. Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Hugo found himself outside in a ditch. He looked up to see frightened eyes. It was Enid the Magnificent. “There she is!” cried one of the goons. Then she walked out the door and was gone. Hugo and his father never saw her or heard about her again. But on the table, she left a piece of paper with these problems on it. Write the fractions as decimals and the decimals as fractions. (Round repeating decimals to the nearest thousandth.) “Quick,” said Hugo’s father. “Come with us.” 13 11. 1_ 00 = _________ They escaped to a small inn at the edge of the woods. Hugo’s father gave Enid a cup of steaming hot tea. 12. 5_1 = _________ “Drink this,” he said. 13. .76 _________ 14. 8.08 = _________ 15. 9_4 = _________ 3 16. 91_ 0 = _________ 17. 77.08 = _________ 18. 678.009 = _________ _2 = 19. 11 5 _________ 20. 7_4 = _________ “You saved my life,” Enid said. “Perhaps,” Hugo’s father said. “Has such a thing ever happened to you before?” “Too often,” Enid said. “These people, they don’t understand fractions.” “Neither did I,” Hugo’s father said. “You opened my eyes tonight, Enid.” She smiled. “I must go,” she said. “But wait,” Hugo’s father said. “There is so much you have to teach us.” “You know enough already,” Enid said. “What you don’t know, you can discover on your own.” “But how can we ever thank you?” Hugo’s father asked. “You’ve thanked me enough already,” Enid said. 71 SKILL 26: Fraction Number Sense Name Name That Fraction CONNIE: And now it’s time for NAME THAT FRACTION. I’m your host, Connie Twinkle. Here’s our All-Star Panel: Gunther Duff, Jane Pesto, and Mickey Toothache. Hello, Panel! (wild applause) Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources PANEL: Hi, Connie! CONNIE: And now it’s time to introduce our Secret Fraction. Tell us about yourself, Secret Fraction. (even wilder applause. Secret Fraction enters in disguise.) FRACTION: Hello, Panel. Hey, what can I tell ya? I’m a common fraction. You’ve probably seen me around — in pizzas, hockey games, candy bars, stuff like that. (audience murmurs) GUNTHER: I know it’s early but I’m gonna 5 make a guess here. Are you _ 6? BUZZER: B-u-u-u-z-z! CONNIE: I’m sorry, Gunther. The Secret 5 Fraction is much smaller than _ 6. We move to Jane Pesto. 1 JANE: Are you larger than _ 4 and smaller 1 than _ 2? FRACTION: Yes I am. JANE: Hmm. I think I saw you at a party once. Is your numerator odd or even? FRACTION: It’s odd, Jane. Very odd. (Audience roars with laughter.) 1. Name 2 fractions that are smaller than 6_5. ________ ________ 2. Name 2 fractions larger than 4_1 and smaller than 2_1. ________ ________ 3. Name a fraction small _1 that has er than 2 an odd numerator. _______ 72 3 JANE: I’m going to guess..._ 8? 4. Name a fraction that’s smaller than _3 and BUZZER: B-u-u-u-z-z! 8 CONNIE: I’m sorry, Jane, that’s too big. We’ll move to Mickey Toothache. larger than 4_1. _________ MICKEY: You sound familiar to me. If I split 1 ? you in half, would you be much bigger than 6_ Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources FRACTION: Not a bit. But please don’t split me in half. I’ll go on a diet. I promise! (Audience howls) MICKEY: I think I know who it is, Connie. 1 Are you _ 3? 5. What fraction could you split in half to get 6_1? _________ BUZZER: Ding! Ding! Ding! CONNIE Very well done, Mickey. Secret Fraction, will you please come out! (Fraction takes off disguise) GUNTHER: (smacks his forehead) I should’ve known! JANE: Well aren’t you cute. FRACTION: I try to be. (Audience chortles.) MICKEY : Can I ask you one question. As a decimal, what do you look like? FRACTION: As a decimal, my real name is too long to pronounce. Most people call me 0.33 for short. 6. Write the fraction _1 as a decimal. _________ 3 MICKEY: Of course. 7. Write the decimal 0.33 as a fraction. CONNIE: And now it’s time to move on to our Super Secret Bonus Fraction round. (Super Secret Fraction enters. Big applause.) BONUS FRACTION : I come from a family of large denominators. But I wanted to be in show biz, so I changed my denominator to 8 when I left home. At that time I was so skinny, I had a numerator of 1. But then I started working out and doubled my numerator size. MICKEY: My goodness! 73 _________ 8. So far, what do you think the super secret bonus fraction could be? ___________ B ON U S FRA C T ION : That’s just the beginning. It was around then that people started noticing me. I got a job as a model. Then I started getting really big. My denominator stayed the same, but my numerator size increased to 6. 9. Write the fraction. ___________ _ 6 MICKEY: Wait. Are you 13 ? Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources BUZZER: B-u-u-u-z-z! BONUS FRACTION: No I’m not. Around at that time I starting writing myself in simplest form. It was unbelievable! I was the same size, only I now had a different numerator and denominator. 10. Write the fraction in simplest for m. ___________ JANE: This is fascinating. It must be wonderful to be a fraction. BONUS FRACTION: Oh it’s okay. But you never really feel WHOLE, you know? (Audience hoots with laughter.) 1 But anyway, at this time, I added myself to _ 8 and became the fraction I am today. CONNIE: Well, panel, there you have it— today’s Super Secret Fraction’s story. Now it’s time for each of you to record your guesses on your cards. GUNTHER: Oh goodness, Connie. This is really a toughie. MICKEY: Yeah, Connie. Can’t you give us a little hint? CONNIE: I’d love to, Mickey. But as you know, it just wouldn’t be Name That Fraction if I gave you clues. Good luck, panel, and good night. 74 _1 to your answer 11. Add 8 for pr oblem 9. Write the Super Secret Fraction in lowest ter ms. ___________ 12. What is the decimal value of the Super Secret number? ___________ SKILL 27: Multiplication, Division and Addition Name 99999999999999999 Martha’s Brain Game I’m Martha Crunch, your personal fractions trainer. Ra-a-ah! And this is Steve. Ee-e-urk! Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Guess what? We found a great new game you can play using my brain! Martha’s Brain Game Actually, it uses my IMAGINATION. That’s the part of my brain that’s full of good things. Here’s how you play. 1. You need a penny, the brain board at right, and paper and pencil. The object of the game is to score the most points. 2. Spin the penny on the board. Watch where it lands. Then think of an example that fits that category. • Example 1: The penny lands on Funny Stuff. You have to think of something funny. 3. The other players rate your funny idea. Ratings must be between 1 and 100, with 100 as the best score. 4. Multiply the rating by the fraction next to the category. The number you get is your score. • Example 2: Your funny idea gets a rating of 20. You then multiply 20 x _2 to get a score of 8. 5 • Example 3: The penny lands on Daydreams. Your daydream gets a 1 rating of 18. You multiply 18 x _ 4 to 1 get a score of 4 _ 2. 5. Write your scores on separate paper. Scores count only if you multiply correctly. 6. Add up the scores. The first player to get 100 points wins. I just know you’re going to have a lot of fun with my Brain Game. And who knows. It may even improve your own brain! So long everyone! 75 Martha’s Imagination Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources (Not drawn to scale) Weird Stuff Really Boring Stuff 1 10 1 12 Funny Stuff 2 5 Totally Cool Stuff 1 6 Daydreams 1 4 76 TEST 1 Name The Ultimate Fraction Workout, Part 1 Hi. Martha Crunch here, your personal fractions trainer. Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Now that you know all there is to know about fractions, it’s time you learned soming about me......Martha Crunch. So without further ado, here I am ... THE MARTHA CRUNCH STORY PART 1 — THE EARLY YEARS 1 1. I was born at a very young age. When I was _ 2 year old, I found my first 3 true love in life—fractions. My mother claims I was actually _ 5 of a year _ _ old at the time. When was I older—at 21 year or 53 year? 2 2. As an infant, I loved to play with my food. I remember one time I had 3_ 2 _ of a bowl of mush. I changed it into a fraction that was still equal to 3. Write two dif fer ent fractions I might have used. 3. I used to cry and scream when fractions weren’t written in simplest 18 _ , 16 _ 28 _ form. Here are some fractions: 42 25, 63. Which ones made me cry and scream? 4. Rewrite the fractions that made me cry and scr eam so they ARE in simplest for m. 5. As a toddler, I became obsessed with improper fractions. 3 When I was 2 _ 4 years old I expressed my age as an improper fraction. How many years old did I say I was? _ I started becoming interested in mixed numbers. 6. At age 30 7 What was my age as a mixed number? 77 7. In kindergarten I met Steve, my bird. He was doing jumping jacks in his 7 cage at the pet store. He did them for 2 8_ minutes. Then he stopped and _ 5 did sit-ups for 3 8 minutes. How many minutes did he exercise in all? 8. I noticed that Steve did sit-ups for longer than jumping jacks. How many minutes longer did he do sit-ups? 9. I took Steve home with me. It was then I realized he could talk. He said, Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources _3 ounces of mango juice and _1 ounce of papaya juice in my “Please mix 4 6 water tray.” What was the total weight of the juice? 1 10. Steve drank _ 2 ounce of the juice. How much was left over? 11. It turned out that Steve loved fractions. One of the first things he _ _ 5 1 ever asked me was, “What is 4 7 + 1 14?” I worked out the answer. But Steve’s curiosity about fractions was unending. He kept asking me questions like these: 7 1 _ 12. What is 6 1_ 0 + 36 ? _ 16. And finally, _ _ what is 20 32 - 10 65? _ 13. What is 8 31 - 2 41 ? 17. I was exhausted. Before I met Steve I remember I weighed 60 pounds. Before long, I’d _2 pounds. How lost 6 3 much did I weigh then? _ _ 14. What is 13 51 - 7 53 ? _5 7 15. What is 4 1_ 2 + 9 + 9? It soon dawned on me that if I liked doing fractions so much I should get paid for them. So I put out a sign that said: I’LL DO FRACTIONS FOR YOU—25¢ But nobody came. And now we were out of money. Would Steve and I ever get paid for doing fractions? All I can tell you is that this story... WILL BE CONTINUED. If you want to find out what happened, see The Ultimate Fraction Workout, Part 2 on page 79. 78 TEST 2 Name The Ultimate Fraction Workout, Part 2 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources Hi. Martha Crunch here, your personal fractions trainer. And this is the second part of The Martha Crunch Story. I call it... THE MARTHA CRUNCH STORY, PART 2 THE YEARS THAT FOLLOWED PART 1 1. As you’ll recall, I’d put out a sign that said I’LL DO FRACTIONS FOR YOU—25¢. But nobody came. So I put up another sign. It said, I’LL DO 1 FRACTIONS FOR YOU—_ 5 OFF THE REGULAR 25¢ PRICE. How many cents of f the regular price was this? _2 of that on some bird2. Steve and I were down to our last 18¢. I spent 3 seed. How much did it cost? 3. I spent what remained of our 18¢ on a piece of bread. How much did the bread cost? 5 4. Then it hit me: musical fractions. I found an old guitar. I multiplied 8_ x _ 12 25 to the tune of “Yankee Doodle Dandy.” What answer did I get? _5 by 10 to the tune of “Swanee River.” 5. I tried musical division. I divided 7 What answer did I get? _ 1 5 6. I multiplied 4 _ 5 x 14 to the tune of “Happy Birthday to You.” What answer did I get? 79 _1 by 1 _2 to the tune of “Twinkle Twinkle Little Star.” 7. I tried dividing 10 2 5 What answer did I get? 8. Steve and I had no money left. Everyone seemed to love our music. 1 But no one was interested in paying money for it. Luckily, we found _ 2 of 3 a pizza. We sold _ 4 of that half for two dollars. What fraction of an entire pie did we sell? Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 6 9. I used the money to buy more pizza. I bought 7_ of a whole pizza. I divided it into 3 parts. What fraction of the entire pie was each piece? 10. I kept buying pizza and selling it for a little more than I paid for it. I _2 1 did this for 3 _ 2 weeks. For 3 of that time, I was selling anchovy pizza. For how many weeks did I sell anchovy pizza? 1 11. Then I got a new idea: an aerobic fractions video. It would be 2 _ 2 hours long. I would divide it into 5 equal parts. How many hours would each part last? 12. I shortened the video to only 60 minutes. Commercials took up 12 of those minutes. What fraction of the video did commercials take up? 13. People complained that the video had too many commercials. I cut all 2 but 3 commercials. Each lasted 1 _ 3 minutes. How many minutes did the commercials take up now? 14. What fraction of the entire HOUR did the commercials now take up? 15. Then it happened. The famous adventurer Texarkana Bernstein bought my video. She liked it and started telling her friends about it. Sales took off. Suddenly, I was famous. 27 _ I’ll never forget the first thing Tex asked me. “Can you change 100 to a decimal?” she said. Of course I could! What did I write? 16. I did a Holiday Fractions Special for National TV. On it I changed 0.3 to a fraction. What answer did I get? 80 17. One thing led to another. Steve and I became Fraction Specialists for all the big Hollywood stars. Did you see the movie Dull and Duller? I did the fractions for that movie. I wrote 0.6 as a fraction in simplest form. What answer did I get? 7 18. In another movie, Cheese Man 4: Major Meltdown, I wrote _ 8 as a decimal. What answer did I get? Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 19. Pretty soon I became a personal fractions trainer for the rich and famous. I once explained to zillionaire cracker mogul Victor Kronski 7 _3 71 how to put _ , , 0.73, and _ in order from 10 4 100 greatest to least. Can you put them in or der? 20. Don’t get me wrong. I loved working for the rich and famous, but it bothered me that I couldn’t help REGULAR folks like you and me. So when they offered me the job to be the personal fractions trainer here, I jumped at the chance. I still work for the rich and famous 2 days a week. The other 4 days I work here. What’s the ratio of the days I work for the rich and famous to the days I work her e? Write the ratio in simplest for m. So that’s pretty much my story. I LOVE being a personal fractions trainer. I really do. Because it lets me help people like you. But you don’t really need my help anymore. As far as fractions go, you’re an ACE. So I guess it’s time to be moving along. So long, everyone. Keep in touch! 81 SKILL: 1 1. 3_2 2. 2_1 3. 5_3 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 4. 7_3 5. 5_4 6. 8_1 7. 9_5 7 _ 8. 10 6 _ 9. 11 10. 4_4 Great Artists of the World Draw Fractions SKILL: 2 1. 7_3 2. 7_4 3. 7_2 4. 7_5 5. 8_4 or 2_1 6. 8_4 or 2_1 7. 8_5 8. 8_8 or 1 9. 4_3 10. 4_1 11. 8_3 12. 8_5 3 _ 13. 12 or 4_1 9 _ 14. 12 or 4_3 6 _ 15. 12 or 2_1 6 _ 16. 12 or 2_1 17. 3_2 18. 3_1 19. 4_1 20. 4_3 999999999999999999 Martha Crunch, Personal Fractions Trainer 999999999999999999 Answers T ry This: Answers will vary. The History of Fractions SKILL: 3 1. 2_1 of the large pie should be colored in 2. 3_2 of the small pie should be colored in 10. 8 shapes should be colored. Dear Fraction Lady SKILL: 4 1. 3_2 is greater, Randy’s Candy Bar 2. 8_7 is greater, Lloyd’s worse 3. 8_3 is greater, get the haircut 4. In order: 8_7, 4_3, 3_2, 7_1 Louie Lewis, Fractional Private Eye SKILL: 5 1. Students should show that diagrams, models, or cut-outs 1 2 of _ and _ are equivalent. 2 4 They might also show a way that 1 is half of 2. 3. 4_3 of the long board should be colored in 4. 4_1 of the short board should be colored in 5. 5 sheep 6. 4 coins 2. Students should show that diagrams, models, or 1 4 cut-outs of _ and _ are equiv2 8 alent. They might also show that 4 is half of 8 in the same way that 1 is half of 2. 3. Explanations should indi- 7. Drawing should be divided cate that the fractions take into 5 parts; 3 parts should up the same part of the total be colored. but are divided into different 8. Drawing should be divided into 10 parts; 7 parts should be colored. numbers of parts. 5 _ 4. Sample response: 10 6 _ 5. Sample response: 12 9. 3 shapes should be colored. 82 7 _ 6. Sample response: 14 9. Sample response: 9_3 5 _ 10. Sample response: 15 _ 11. Sample response: 10 30 _ 12. Sample responses: 9_6, 10 15 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 9 15 _ _ 13. Sample response: 12 , 20 4 _ 8 _ 14. Sample responses: 10 , 20 2 _ 6 _ 15. Sample responses: 12 , 36 Martha and Steve: Simplest Form SKILL: 6 1. 2_1 2. 7_3 3. 5_1 4. 7_2 5. 5_3 6. 7_3 7. 4_1 8. 5_2 9. 6_5 10. 5_4 11. 2_1 12. 7_6 13. 5_414. 7_4 15. 3_2 16. 9_8 17. 4_3 18. 5_2 9 _ 19. 10 20. 3_2 Joe Trella, Fraction Fella SKILL: 7 1. 1 2_1 2. 1 3_2 3. 1 4_3 4. 4 2_1 5. 2 5_4 6. 3 5_1 7. 3 8_1 8. 5 6_5 7 _ 9. 5 10 10. 1 _ 6 15 11. 1 3_1 12. 1 2_1 13. 4 14. 2 3_1 15. 2 2_1 16. 1 7_6 17. 1 4_1 18. 1 4_1 19. 4 6_1 20. 5 2_1 21. 2_3 22. 3_8 83 9999999999999999999 8. Sample response: 6_2 9999999999999999999 _ 7. Sample response: 10 20 _ 23. 17 5 24. 2_9 _ 25. 21 8 _ 26. 29 6 _ 27. 31 3 _ 28. 59 7 _ 29. 73 6 122 30. _ 3 Never More, Baltimore! SKILL: 8 1. 4_3 2. 8 3_2 3. OK 4. 6_5 5. 14 4_3 6. 5_3 7. OK 8. 5_2 9. 3_2 10. 7_6 3 _ 11. 16 12. 12 8_7 13. 5 5_1 14. OK 15. 7 3_2 16. 3_2 1. 8_3 2. Answers will vary. 7 _ _ 3. 3_1, 2_1, 5_3, 10 , 87 4. Answers will vary. 4 6 Sample response: _ , _ 10 15 5. 4_3 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 6. 1 4_3 7. 14 _ 3 Rex Roper’s Believe It or Not! SKILL: 9 1. 1 7_2 hour 2. 7_3 hour 3. 1 5_4 ounces 4. 1 ounce 5. 1 5_1 ounce 6. 5_2 oz 7. 4_1 8. 4_3 _ 9. 15 16 10. 1 11. 2_1 pound 12. 3_1 pound 13. 2_1 pound 14. 2 pounds 15. 5_2 16. 3_1 17. 3_2 7 _ 18. 15 Texarkana Bernstein: Episode 1 SKILL: 10 1. 29 4_1 inches 2. 4_3 inch 3. 15 _3 8 inches 4. Answers will vary 1 20 2_ inches 5. 6. 6 4_3 inches _1 2 9999999999999999999 QUIZ 1 9999999999999999999 Ultra-Workout 1 7. 9 8. No, their hat sizes don’t inches add up to 30 inches. 9. It has to be larger because Stinky’s hat size is less than half of 30 inches. Meg O’Malley of the Fraction Police SKILL: 11 1. 4_3 7 _ 2. 10 3. 6_5 _ 4. 14 15 5. 8_7 _ 6. 11 12 9 _ 7. 14 8. 5_3 _ 9. 19 24 10. 6_5 Martha’s Brain SKILL: 12 1. Stubborn Determination 2. Old Pasta Recipes 10. No, because the sum of 5 3 14 _ and 13 _ is 28 inches, 1 _ 3. Gumption; 24 not 30 inches. 4. Stubborn 8 8 11. 16 8_5 inches 12. 30 inches 13. 3 4_1 inches 14. 2 inches 15. It must be the sheriff. He’s the only one in town 1 Determination; 4_ 5. 4_3 6. 4_1 7. Stubborn Determination and Gumption 8. Gumption, Old Pasta Recipes, Vim & Vigor who has the right hat size. 84 9. Vim & Vigor 1. 5 6_5 2. 4 11 _ 12 5 _ 3. 8 12 7 _ 4. 9 12 5. 10 4_3 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 6. 14 4_1 5 _ 7. 15 12 8. 13 3_1 9. 14 2_1 10. 18 11. 28 4_3 12. 25 13. 17 and 44 14. 18, 25, 43 Billy Doogan, Roving Weather Man SKILL: 14 1. 5 2_1 degrees 2. 13 4_1 degrees 3. 7 4_3 degrees 4. 14 3_1 degrees 5. 1 3_1 degrees 6. 4_1 degree 7. 8 4_3 inches 8. 1 4_1 degrees 9. 2 2_1 degrees 10. 3 4_3 degrees 11. 1 3_1 miles per hour 12. 4 3_1 inches 13. 7 3_2 inches Ultra-Workout, Too! QUIZ 2 _ 1. 11 15 2. 1 6_1 pounds _ 3. 11 18 _ 4. 23 24 cup 3 _ 5. 3 10 6. 1 3_1 blocks _ 7. 13 11 24 _ 8. 8 13 20 gallons Emily Taproot SKILL: 15 1. 45 2. 24 3. 27 4. 7, 9 5. 24 6. 11 7. 56 8. 14 The Frackie Awards SKILL: 16 1. 3_1 2. 2_1 85 9999999999999999999 SKILL: 13 9999999999999999999 Texarkana Bernstein: Episode 2 7 _ 3. 10 4. 8_5 5. 8_3 6. 2_1 7. 5_2 8. 3_1 9. 8_5 1 _ 10. 10 11. 5_1 12. 12 seconds Emily Taproot’s Winky-Tinky Tigglesworth SKILL: 17 1. 1 2. 2_1 1 _ 3. 50 4. 3_8 or 2 3_2 _ or 2 _4 5. 18 7 7 6. 4_9 or 2 4_1 7. 5_3 8. 1_8 or 8 _ or 8 _1 9. 33 4 4 10. 5_2 11. 3_4 or 1 3_1 _ 12. 50 50 or 1 13. 2_3 or 1 2_1 14. 3_2 15. 5_7 or 1 5_2 The reciprocal of a reci- 5. 8 6. 1 2 5_ 7. 2 9_2 8. 2 1 3_ 9. 1 9 3_ procal is the original number itself. Louie Lewis, The Case of the Flipping Fractions SKILL: 18 1. 1 2_1 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 2. 2 3. 3 3_1 4. 2 2_1 5. 10 2_1 6. 1 3_1 7. 1 2_1 8. 9 9. 16 5 _ 10. 12 _ 11. 14 15 12. 2 4_3 13. 3 3_1 14. 7_4 15. 9_5 Officer Meg O’Malley: Episode 2 SKILL: 19 1. 2 2. 2 3_1 3. 6 4_1 4. 1 10 2_ 10. 5 6_5 11. 2 3 _ 12. 20 Yucky Cooking With Mr. Pierre SKILL: 20 1. 5 ounces 2. 1 4_1 ounces 3. 3 ounces 4. 6 servings 5. 2 2_1 pounds 6. 8_3 pound 7. 5 pieces 8. 3 pieces _ 9. 2 11 12 ounces 7 _ 10. 12 ounce 11. 7 portions 5 _ 12. 24 ounce 86 9999999999999999999 17. 9999999999999999999 16. 7_5 Martha’s Video Workout SKILL: 21 1. 2_1 2. 1 3_2 3. 3_2 4. 1 2_1 5. 6 6. 2_1 1 _ 7. 12 8. 32 9. 6 3_2 10. 3 5_4 11. 2_1 12. 28 13. 4 14. 9_8 2 _ 15. 2 15 Ultra-Workout 3 QUIZ 3 1. 9 2. $16 million 6 _ 3. 77 4. 3_2 ton 5. 9_8 6. 1 8_7 hour 7. 20 square inches 1. 7_3 1 _ 2. 14 1 _ 3. 15 1 _ 4. 55 5. 5_2 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 6. 6_1 1 _ 7. 21 1 _ 8. 70 9. 5_2 10. 9_1 1 _ 11. 24 1 _ 12. 128 1 _ 13. 20 1 _ 14. 54 3 _ 15. 50 1 _ 16. 48 BONUS QUESTION: Icky, because it has the largest probability. It will appear in almost half of all negative reviews. Arnold Guck SKILL: 23 1. 3 to 9, 3:9, 9_3 2. 1 to 3, 1:3, or 3_1 3. 3 to 1, 3:1, or 1_3 4. 4 to 1 5. 3_2 6. 2:1 7. 4 to 3, 4:3, or 3_4 8. 3 to 2, 3:2, or 2_3 9. 1 to 2, 1:2, or 2_1 10. 3 to 4, 3:4, or 4_3 11. 20 cases 12. 80,000 cases 13. 80 boxes 14. 10 boxes 15. 5,000; 8,000 9999999999999999999 SKILL: 22 9999999999999999999 The Critics Enid the Magnificent, Part 1 SKILL: 24 2 _ 1. 3 10 4 _ 2. 10 89 _ 3. 5 100 8 _ 4. 64 10 5 _ 5. 100 9 _ 6. 24 100 4 _ 7. 1000 1 _ 8. 13 1000 9. 29 _ 562 1000 40 _ 10. 37 1000 11. 0.9 12. 0.7 13. 0.23 14. 2.5 15. 1.25 87 16. 6.341 17. 0.07 18. 4.08 19. 0.003 20. 2.037 Enid the Magnificent, Part 2 SKILL: 25 1. 0.5 2. 0.4 3. 0.75 4. 0.8 5. 0.222 6. 0.375 7. 0.625 8. 0.286 9. 0.636 10. 0.95 11. 0.13 12. 0.2 76 _ 13. 100 8 _ 14. 8 100 15. 0.444 16. 9.3 8 _ 17. 77 100 9 _ 18. 678 1000 19. 0.8 20. 0.571 1. Answers will vary. Sample response: _1, _1 2 4 2. Answers will vary. Sample 3 1 response: _, _ 8 3 3. Answers will vary. Sample 3 response: _ 7 Funny & Fabulous Fraction Stories © Dan Greenberg, Scholastic Teaching Resources 4. Answers will vary. Sample response: _1 3 5. 3_1 6. .33 33 _ 7. 100 8. 8_2 9. 8_6 10. 4_3 11. 8_7 12. 0.875 Test 1 1. 5_3 year 9999999999999999999 SKILL: 26 9999999999999999999 Name That Fraction! 2. Answers will vary. Sample 4 _ 8 response: 6_, 12 3. 18 _ 42 and 28 _ 63 _ _3 4. 18 42 = 7, 28 _ 63 = 9_4 _ 5. 11 4 years 6. 4 7_2 years 7. 6 2_1 minutes 8. 4_3 minute _ 9. 11 12 ounces 5 _ 10. 12 _ 11. 5 11 14 12. 9 5_4 1 _ 13. 6 12 14. 5 5_3 5 _ 15. 14 36 16. 9 6_5 17. 53 3_1 pounds 88 Test 2 1. 5¢ 2. 12¢ 3. 6¢ 3 _ 4. 10 1 _ 5. 14 6. 1 2_1 7. 7 2_1 8. 8_3 pie 9. 7_2 pie 10. 2 3_1 weeks 11. 2_1 hour 12. 5_1 13. 5 minutes 1 _ 14. 12 15. 0.27 3 _ 16. 10 17. 5_3 18. 0.875 71 7 _ _ 19. 4_3, 0.73, 100 , 10 20. 1 to 2; 1:2; 2_1