几分之几=零点 公式要完整
3个回答

1/2=0.5

1/4=0.25

3/4=0.75

1/5=0.2

2/5=0.4

3/5=0.6

4/5=0.8

1/8=0.125

3/8=0.375

5/8=0.625

7/8=0.875

1/10=0.1

3/10=0.6

7/10=0.7

9/10=0.9

1/20=0.05

3/20=0.15

7/20=0.35

9/20=0.45

11/20=0.55

13/20=0.65

17/20=0.85

19/20=0.95

1/25=0.04

2/25=0.08

3/25=0.12

4/25=0.16

6/25=0.24