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Dividing Fractions A Visual Lesson. Some of you know what to do… BUT most of you don’t know why.

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Presentation on theme: "Dividing Fractions A Visual Lesson. Some of you know what to do… BUT most of you don’t know why."— Presentation transcript:

1 Dividing Fractions A Visual Lesson

2 Some of you know what to do… BUT most of you don’t know why.

3 True or False When you multiply a number by another number, your product will always be larger than your factors.

4 Multiplication with Whole Numbers 4 sets of 3

5 Multiplication with Fractions 1212 2323 2626

6 True or False When you divide a number by another number, your quotient will always be smaller than your dividend.

7 Division with Whole Numbers 6  2 = ? How many sets of 2 fit into 6? 

8 How many 1/2s go into 2/3? Division with Fractions

9 True or False When you multiply a number by another number, your product will always be larger than your factors. When you divide a number by another number, your quotient will always be smaller than your dividend.

10 1414 1818 

11 How many 1/8s make a 1/4? 1 2

12 Division as Equivalent Fractions Another thing you could do is ask yourself: How many 1/8 parts make up 1/4? 1414 ? 8

13 1414 1818  8181 x

14 1414 8181 x 1 x 8 4 x 1 8484 8484 8  4 =

15 Need Proof? ABCDABCD ABAB CDCD 

16 ABCDABCD x DCDCDCDC A D B C C D D C x x

17 A D B C C D D C x x A D B C x CD DC A D B C x

18 You have half a carton of eggs. How many of the eggs (each egg is 1/12 of the cartoon) can you fit into half a carton of eggs? 1/2  1/12 = 6 OR1/2 * 12/1 = 12/2 = 6

19 Division as Equivalent Fractions Another thing you could do is ask yourself: How many 1/12 parts make up 1/2? 1212 ? 12


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