Question

1.the product of two rational number is -5/9. If one of the number is 15/72, find the other.

2.What number should be added to 13/27 to get 8/15

3.simplify:
(-3/4 +5/4)÷(7/8 +3/8)

Answer 1

Answer:

i) -8/3

ii) 7/135

iii) 2/5