Calculate $\frac{3}{4}$ to the power of $-2$ and get $\frac{16}{9}$.
$$sort(\frac{1}{8},\frac{16}{9})$$
Least common denominator of the numbers in the list $\frac{1}{8},\frac{16}{9}$ is $72$. Convert numbers in the list to fractions with denominator $72$.
