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Multiplication of Fractions by Monica Yuskaitis. Copyright © 2000 by Monica Yuskaitis How to Find a Fraction of a Fraction Step 1 - When you see a fraction.

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Presentation on theme: "Multiplication of Fractions by Monica Yuskaitis. Copyright © 2000 by Monica Yuskaitis How to Find a Fraction of a Fraction Step 1 - When you see a fraction."— Presentation transcript:

1 Multiplication of Fractions by Monica Yuskaitis

2 Copyright © 2000 by Monica Yuskaitis How to Find a Fraction of a Fraction Step 1 - When you see a fraction problem you know when you read “of” in the problem you multiply. of x 1 2 4 9

3 Copyright © 2000 by Monica Yuskaitis How to Find a Fraction of a Fraction Step 2 – Multiply your numerators straight across. x 4 9 1 2 = 4

4 Copyright © 2000 by Monica Yuskaitis How to Find a Fraction of a Fraction Step 3 – Then multiply your denominators straight across. x 4 9 1 2 = 4 18

5 Copyright © 2000 by Monica Yuskaitis How to Find the Fraction of a Fraction Step 4 – Simplify your answer. In this case we reduce. x 4 9 1 2 = 4 18 ÷ ÷ 2 2 = 2 9

6 Copyright © 2000 by Monica Yuskaitis Multiply and Simplify 4 3 7 2 = 28 6 6)6) 4 of x 24 4 4 4 6 ÷ ÷ 2 2 = 2 3 4

7 Copyright © 2000 by Monica Yuskaitis Multiply and Simplify 9 2 3 4 = 27 8 8)8) 3 of x 24 3 3 8

8 Copyright © 2000 by Monica Yuskaitis Multiply and Simplify 8 2 7 3 = 56 6 6)6) 9 of x 54 2 2 6 9 2 6 ÷ 2 2 = 9 1 3 ÷

9 Copyright © 2000 by Monica Yuskaitis Multiply and Simplify 3 4 4 2 = 12 8 8)8) 1 of x 8 4 4 8 1 4 8 ÷ 4 4 = 1 1 2 ÷ Super job!

10 Copyright © 2000 by Monica Yuskaitis How to Find a Fraction of a Mixed Number Step 1 - When you see a fraction problem you know when you read “of” in the problem you multiply. of x 1 2 4 9 3

11 Copyright © 2000 by Monica Yuskaitis How to Find a Fraction of a Mixed Number Step 2 – Change the mixed number to an improper fraction. x 1 2 4 9 3 x + 27 27 + 4 31 9

12 Copyright © 2000 by Monica Yuskaitis How to Find a Fraction of a Mixed Number Step 3 – Multiply the numerators straight across. x 1 2 31 9 =

13 Copyright © 2000 by Monica Yuskaitis How to Find a Fraction of a Mixed Number Step 4 – Multiply the denominators straight across. x 1 2 31 9 = 18

14 Copyright © 2000 by Monica Yuskaitis How to Find a Fraction of a Mixed Number Step 5 – Simplify your answer. In this case change the improper fraction to a mixed number. x 1 2 31 9 = 18 18 ) 31 1 18 13 18

15 Copyright © 2000 by Monica Yuskaitis Multiply and Simplify 1 4 = x 4 7 x 35 35 + 4 5 + 39 7 28 28 ) 39 1 11 28

16 Copyright © 2000 by Monica Yuskaitis Multiply and Simplify 4 5 = x 3 4 x 24 24 + 3 6 + 27 4 108 20 20 ) 108 5 8 20 ÷ ÷ 4 4 = 2 5

17 Copyright © 2000 by Monica Yuskaitis Multiply and Simplify 2 5 = x 1 4 x 24 24 + 1 6 + 25 4 50 20 20 ) 50 2 10 20 ÷ ÷ 10 = 1 2 You’re shining!


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