分数加减混合运算50道题

分数加减混合运算50题12/3+1/2-3/2=3

6/3-4/2+3/5=3/5

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

5/2-3/2+6/2=4

8/3-2/3+1/3=7/3

2/5+1-1/5=6/5

8/3-1/3-2/3+7/3=4

1/7-2/7+1/7=0

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

1/3+5/6=7/6

1/3-1/4=1/12

1/5+1/7=12/35

1/5-1/7=2/35

1/4+1/9=13/36

1/4-1/9=5/36

1/8+1/9=17/72

1/8-1/9=1/72

5/7-1/6=23/42 1-5/9=4/9

1/5+3/8=23/40 3/4+1/5=19/20 2/3-3/5=1/5

1-2/5=3/5

5/8-1/9=37/72 1/10-1/20=1/20 1/6+3/8=13/24 5/9-1/2=1/18

2/3+1/4=11/12 1/2+1/3=5/6

5/6+1/18=8/9 3/5-1/3=4/15 17/15-1/3=4/5

1/2-1/4=1/4

1/7-1/8=1/56

1/3-1/9=2/9

5/6-1/2=1/3

1-2/3=1/3

1-6/7=1/7

11/12-2/3=1/4 3/10+2/5=7/10 7/8-1/4=5/8

3/4+5/12=7/6 3/5-3/7=6/35

5/4-5/12=5/6

1/5-1/9=4/45

1/3-1/8=5/24 11/6-2/9=29/18