Fractions

REVIEW: 3 7 5 16 Compare fractions with the same numerator： The bigger the denominator, the smaller the fraction. 6 8 3 4 12 10 Compare fractions with the same denominator： The bigger the numerator, the bigger the fraction.

２ ４ eat　 of the cake 1 4 1 2 2 4 1 4 1 2 ２ ４ ＝ 1 2 eat　 of the cake Equivalent fractions

compare 、 、 4 3 8 6 12 9 Equivalent fractions

2 16 1 8 14 16 7 8

2 12 1 6 10 12 5 6

2 10 1 5 8 10 4 5

12 2 8 1 4 16 3 16 9 8 3 4 12 6

9 2 6 1 3 12 4 9 6 2 3 12 4 8

6 16 3 8 10 16 5 8

4 10 2 5 6 10 3 5

12 5 8 16 6 1 2 3 4 10

2 16 1 8 1 8 2 16 2 12 1 6 12 2 8 1 4 16 3 8 3 12 4 16 2 1 12 5 8 16 6 1 2 3 4 10

What is the relationship between the equivalent fractions? Whatever we multiply or divide the numerator by ,we must multiply or divide denominator by . (except we can not multply or divide by 0)

Fill in blanks： ( ) 8 3 4 = 3 ( ) 9 18 = 4 10 = 2 ( ) 20 30

Can you find equivalent fractions?

Colour and Compare = = Colour the figures according to the following fractions,then compare them = =

8 1 2 7 3 6 4 5 3 4 ６ ８ ＝

7 6 8 5 9 4 1 3 2 1 ３ 3 9 ＝

9 8 10 7 11 6 12 5 1 4 2 3 4 12 2 6 1 3 ＝ ＝

3 4 ６ ８ １２ １６ ＝ ＝

Challenge 2 12 1 6 ＝

Challenge 2 6 1 ３ ＝

Challenge Find fraction families 5 8

Summary 1、We know the equivalent fraction. We understand the relationship between the equivalent fractions. 2、We can find fraction families. Whatever we multiply or divide the numerator by ,we must multiply or divide denominator by . (except multply or divide by 0)

1 2 3 6 7 14 3 12 4 16 4 10 1 4 2 5