Simplify or otherwise reduce (4/9)^-3/2

[JoeK882]

This is question 4 in Chapter 5 of MGMAT Number Properties guide on page 71.

Simplify or otherwise reduce the following expressions using the rules of exponents: (4/9)^-3/2

I read the explanation a few times and understand the answer is 27/8, but I need a simpler explanation to really get it.

Thanks!

[RonPurewal]

Hello,

- Please re-post this question in the MGMAT non-CAT math folder.

- When you re-post the question, please include some comments on your own existing thought process.
(What did you understand? What didn't you understand? At what point in the process did you get stuck? Etc.)

Thank you.