(5/3)-2
A negative exponent means to move the term to the denominator and get rid of the negative sign.
= \(\frac{1}{(5/3)^{2}}\)
That is the same thing as:
= \(\frac{1}{5^{2}/3^{2}}\)
=\(\frac{1}{25/9}\)
=\(1 / \frac{25}{9}\)
Keep, change, flip
=\(1 * \frac{9}{25}\)
=\(\frac{9}{25}\)