六年级分数脱式计算100道（不要简算！）？

Question

如题所述

Answer 1

好的，我可以给出一些六年级分数脱式计算的例子，请您按照步骤计算。如果需要更多例题可以让我继续发给您。

5/7 + 2/7
（5 + 2）/7 = 7/7 = 1

4/9 - 1/9
4/9 - 1/9 = 3/9 = 1/3

3/5 × 2/3
3/5 × 2/3 = 6/15 = 2/5

2/3 ÷ 4/5
2/3 ÷ 4/5 = 2/3 × 5/4 = 10/12 = 5/6

1 2/3 + 2/3
1 2/3 + 2/3 = 1 + (2 + 2) / 3 = 2 1/3

5/6 - 1/3
5/6 - 1/3 = 5/6 - 2/6 = 3/6 = 1/2

5/8 × 3/10
5/8 × 3/10 = 15/80 = 3/16

2/3 ÷ 1/2
2/3 ÷ 1/2 = 2/3 × 2/1 = 4/3 = 1 1/3

4/5 + 1 1/4
4/5 + 1 1/4 = 4/5 + 5/4 = 16/20 + 25/20 = 41/20

1 1/4 - 2/5
1 1/4 - 2/5 = 1 - (1/4 - 2/5) = 1 - (5/20 - 8/20) = 1 - 3/20 = 17/20