# Connected Mathematics 2: Bits and Pieces II : Using Fraction by Glenda Lappan, James T Fey, William N Fitzgerald, Susan N

By Glenda Lappan, James T Fey, William N Fitzgerald, Susan N Friel, Elizabeth Phillips

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Additional resources for Connected Mathematics 2: Bits and Pieces II : Using Fraction Operations

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Williams buys a part of a part of the brownie pan. 3. What fraction of a whole pan does Mr. Williams buy? What does he pay? B. Aunt Serena buys 3 of another pan that is half full. 4 1. Draw a picture to show how the brownie pan might look before Aunt Serena buys her brownies. 2. Use a different colored pencil to show the part of the brownies that Aunt Serena buys. 3. What fraction of a whole pan does Aunt Serena buy? How much did she pay? 1 1 C. When mathematicians write 2 of 4 , they mean the operation of 1 1 multiplication, or 2 3 4 .

3 7 10 Homework starts on page 40. 2 Finding a Part of a Part In Bits and Pieces I, you used thermometers to show what fraction of a fundraising goal had been met. These thermometers are like number lines. You mark thermometers in the same way you mark number lines to show parts of parts and to name the resulting piece. The fundraising thermometers can help you make sense of the number lines you will use in this problem. 2 One sixth-grade class raises 3 of their goal in four days. They wonder what fraction of the goal they raise each day on average.

5 10 2 3 7 = 21 3 23. 3 1 1 4 12 = 2 4 Connections 2 24. Mr. Delgado jogs 2 5 km on a trail and then sits down to wait for his 1 friend Mr. Prem. Mr. Prem has jogged 1 2 km down the trail. How much farther will Mr. Prem have to jog to reach Mr. Delgado? 25. Toshi has to work at the car wash for 3 hours. So far, he has worked 3 1 4 hours. How many more hours before he can leave work? qxd 3/14/05 9:45 AM Page 59 For Exercises 26–29, find each sum or difference. Then, give another fraction that is equivalent to the answer.