六年级上册数学一单元,二单元,(分数乘,除,四则运算)知识点归纳 苏教版
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4/7 × 5/9 + 3/7 × 5/9

5/2 -( 3/2 + 4/5 )

7/8 + ( 1/8 + 1/9 )

9 × 5/6 + 5/6

3/4 × 8/9 - 1/3

7 × 5/49 + 3/14

4 ×( 1/2 + 2/3 )

8 × 4/5 + 8 × 11/5

31 × 5/6 – 5/6

9/7 - ( 2/7 – 10/21 )

5/9 × 18 – 14 × 2/7

4/5 × 25/16 + 2/3 × 3/4

14 × 8/7 – 5/6 × 12/15

17/32 – 3/4 × 9/24

3 × 2/9 + 1/3

5/7 × 3/25 + 3/7

3/14 ×× 2/3 + 1/6

1/5 × 2/3 + 5/6

9/22 + 1/11 ÷ 1/2

5/3 × 11/5 + 4/3

45 × 2/3 + 1/3 × 15