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Multiplying/Dividing F ractions U sing word Problems Absent Copy 1/7,8

Multiplying/Dividing F ractions U sing word Problems Absent Copy 1/7,8. Example 1. OPMS released 400 balloons at an awards celebration. Of these, 2/5 were blue. How many were blue? • 400 = 800 1 5 800 5 2•1 •2•2•2•2•5•5 5•1

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Multiplying/Dividing F ractions U sing word Problems Absent Copy 1/7,8

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  1. Multiplying/Dividing Fractions Using word ProblemsAbsent Copy1/7,8

  2. Example 1 • OPMS released 400 balloons at an awards celebration. Of these, 2/5 were blue. How many were blue? • 400 = 800 1 5 800 5 2•1 •2•2•2•2•5•5 5•1 1•2•2•2•2•2•5•5 = 160 =160 5•1 1 solution • What operation do we use when you see the word “of” in the problem? • The word “OF” means to use multiplication. • How do we set up this problem • We set it up using a multiplication symbol. • What goes underneath the 400? • A 1 goes underneath the 400. • What do we make in order to reduce this fraction? • We make a T-chart. • What do we do with the remaining factors? • We multiply the remaining factor to get an answer. 160 blue 240 not

  3. Example 3 • Josh read 4/5 of a 200 page book. How many pages did he read? 4 • 200 = 5 1 4 200 5 2•2 2•2•2•5•5 5•1 2•2•2•2•2•5•5 = 160 = 160 5•1 1 Solution • What operation do we use when we see the word “of”? • The word “OF” means to multiply. • What do we do to make this problem easier? • Make an equation using a multiplication symbol. • What goes underneath the 200? • A 1 goes underneath the 200. • What do we make in order to reduce this fraction? • We make a T-chart. • What do we do with the remaining factors? • We multiply the remaining factor to get an answer. 160 pages

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