Question

Evaluate 1/-5ab if a=3/7 and b=5/8 write in simplest form

Answer 1

-56/75

Explanation:

1/-5ab = 1 ÷ -5ab

we substitute the value of a = 3/7 and b = 5/8 into 1 / -5ab

we have

1/ -5 × 3/7 × 5/8 = 1/ -75/56

this can be written as

1 × 56/-75 = -56/75