4) (5/7-2/3)÷(4/9-5/12).

Question

4) (5/7-2/3)÷(4/9-5/12).

Answer 1

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