异分母分数加减法脱式计算带过程和答案，越多越好？

Question

如题所述

Answer 1

简便计算：

3/8+7/10+5/8=17/10

7/8-(1/8+3/4)=0

4/7+1/6-4/7=1/6

2-7/9-2/9=1

3/5+7/8+2/5=15/8

7/9-(1/9+1/3)=1/3

1/4+(2/5+3/4)=7/5

5/6-3/10+1/6-7/10=0

脱式计算:

3/4+1/6-2/3=1/4

7/8-1/4+4/9=77/72

1-1/3+2/7=20/21

1/2+4/5-3/10=1

5/6-(2/3-1/9)=5/18

9/10-(3/4+1/8)=1/40

1/2+2/3-3/4=5/12

7/8-1/6+1/4=23/24

1-(3/4-2/9)=17/36

9/10-1/5-1/2=1/5

1/4+3/7+1/2=33/28

7/8-(2/3+1/6)=1/24

1-(1/3+3/5)=1/15

1/2+1/4+1/3=13/12

7/8+1/4+1/2=5/8

5/7-(4/7+1/9)=2/63

1-1/4-1/2=1/4

3/4-1/6-1/3=1/4

3/10+1/4+2/5=19/20

2/3+1/6+1/12=11/12

1-1/4-2/5=7/20

1/2+1/9+1/12=25/36