How do you simplify x^(3/7)/x^(1/3)?

2 Answers
Mar 24, 2017

x^(2/21)

Explanation:

"If you are dividing and the bases are the same, subtract the indices."

Consider: x^8/x^3 = x^(8-3) = x^5

In the same way:

(x^(3/7))/(x^(1/3)) = x^(3/7-1/3)

Working with the fractions: find the LCD

3/7-1/3 = (9-7)/21 = 2/21

x^(3/7-1/3)= x^(2/21)

Mar 24, 2017

x^(2/21)

Explanation:

We know, a = 1/a^-1. So, 1/x^(1/3)= x^(-1/3)

Thereby x^(3/7) /x^(1/3) = x^(3/7). x^(-1/3) = x ^(3/7-1/3)

rArr x^[(9-7)/21] = x^(2/21)