Question

(5/7-2/3):(4/9-5/12)

Answer 1

1)5/7-2/3=15-14
_____=1/21
21
2)4/9-5/12=16-15
--------=1/36
36
3)1/21:1/36=1/21*36
1/7*12=12/7=1 целая 5/7