Question

What's the reciprocal of 7/9? a.48/15 b.16/15 c.9/7 d.14/18 ?

Answer 1

The reciprocal of a/b is b/a

The reciprocal of 7/9 is 9/7

If you are given a mixed number like 1 2/3, then first convert it to an improper fraction using:
$a \frac{b}{c} = \frac{(a\times c) + b}{c}$

And then you find the reciprocal of it.

Your answer is C. 9/7.

Answer 2

9/7 is the reciprocal of 7/9