Fractions

Step1:find one whole. Step2:How many equal parts? Calculate division Step3:find each part.

1 1 2 1 2 1 3 1 3 1 3 1 4 1 4 1 4 1 4 1 5 1 5 1 5 1 5 1 5 Fraction Wall 1 6 1 6 1 6 1 6 1 6 1 6 1 7 16 8 9 10 12

REVIEW: Compare fractions with the same denominator： 1 4 3 10 14 3 7 10 9 17 9 2 8 4 10 19 15 5 1 8 12 1 Compare fractions with the same denominator： The bigger the numerator, the bigger the fraction.

1 1 2 1 2 1 3 1 3 1 3 1 4 1 4 1 4 1 4 1 5 1 5 1 5 1 5 1 5 Fraction Wall 1 6 1 6 1 6 1 6 1 6 1 6 1 7 16 8 9 10 12

1 2 If we divided into more equal parts, each part is smaller. 1 3 1 4 1 5 1 6 1 7 When the numerator is 1, The bigger the denominator, The smaller the fraction. 1 8 1 9 1 10 1 12 1 16 1 2 16 3 4 5 6 7 8 9 10 12

Fill in blanks： > > > When the numerator is 1, The bigger the denominator, The smaller the fraction. 3 apples is of the box. 2 apples is of the box. 1 apple is of the box. 2 3 6 1 3 2 1 2 6 1 3 6 > > >

Think and reason/explain Look and compare 2 5 6 1 5 1 5 1 6 2 6 8 1 8 2 8 12 ∵ ， ∴ 2 s 2 s ， So 。 1 5 6 2 When the numerator is 2, The bigger the denominator, The smaller the fraction. 1 12 2 5 6 8 12

3 4 7 4 7 9 7 9 16 1 4 How to compare the fraction with the same numerator? 1 7 1 9 1 16

The bigger the denominator, the smaller the fraction. We can compare fractions with the same numerator. Regular pattern: The bigger the denominator, the smaller the fraction. If we divided into more equal parts, each part is smaller.

3 8 4 5 6 7 12 16 1 5 3 20 19 5 17 10 16 13 9 40 30

Summary 1、Compare fractions with the same denominator： The bigger the numerator, the bigger the fraction. 2、Compare fractions with the same numerator： The bigger the denominator, the smaller the fraction.

Challenge Arrange the following fractions from biggest to smallest. 2 9 3 7 2 7 2 7 9 3