Question

How do you simplify this complex fraction.
5/7 / 15

Answer 1

15 = 5/7 · 1/15 = 5 · 1/7 · 15 = 5/105 = 5 · 1/5 · 21 = 1/21.

Explanation:

To divide one fraction by another, invert (turn upside-down) the second fraction, then multiply. Cancelling by a common factor of 5 gives 1

In other words - five sevenths divided by fifteen = one twenty-first.

Answer 2

5/7 /15 = 5/105 = 1/21

Explanation:

5/7 /15 can equal 5 over 7 divided by 15 so you can change it into 5/7 times

1 over 15.

5 15

----- divided by ---------------- equals 5/7 x 1/15 which is 5/105

7 1