How do you simplify 1/2^-3 and write it using only positive exponents?

Sep 11, 2016

$= 8$

Explanation:

$\frac{1}{2} ^ - 3$

$= {2}^{3}$

$= 8$

Sep 11, 2016

to make the exponent positive,apply the rule of indices i.e. a-²=1/a².
2³=222
=8