分数除法题二十道

如题所述

1、4/9÷5/6

=4/9×6/5

=24/45

=8/15

2、7/10÷4/5

=7/10×5/4

=35/40

=7/8

3、14/15÷2/3

=14/15×3/2

=42/30

=7/5

4、3/8÷3/4

=3/8×4/3

=12/24

=1/2

5、7/8÷3/4

=7/8×4/3

=28/24

=7/6

6、4/7÷3/14

=4/7×14/3

=56/21

=8/3

7、4/5÷1/2

=4/5×2

=8/5

8、6/7÷1/3

=6/7×3

=18/7

9、5/12÷5/11

=5/12×11/5

=55/60

=11/12

10、3/7÷5/14

=3/7×14/5

=42/35

=6/5

11、13/14÷25/26

=13/14×26/25

=（13×26）/（14×25）

=338/350

=179/175

12、2/9÷6/14

=2/9×14/6

=28/54

=14/27

13、2/5÷12/25

=2/5×25/12

=50/60

=5/6

14、225÷1/2

=225×2

=450

15、25÷1/4

=25×4

=100

16、2.2÷1/10

=2.2×10

=22

17、5/4÷7/6

=5/4×6/7

=30/28

=15/14

18、1/4÷1/6

=1/4×6

=3/2

19、6/4÷8/6

=6/4×6/8

=36/32

=9/8

20、9/4÷18/6

=9/4×6/18

=9/4×1/3

=3/4