Fraction $\frac{9}{-4}$ can be rewritten as $-\frac{9}{4}$ by extracting the negative sign.
$$sort(-\frac{9}{4},\frac{-2}{3})$$
Fraction $\frac{-2}{3}$ can be rewritten as $-\frac{2}{3}$ by extracting the negative sign.
$$sort(-\frac{9}{4},-\frac{2}{3})$$
Least common denominator of the numbers in the list $-\frac{9}{4},-\frac{2}{3}$ is $12$. Convert numbers in the list to fractions with denominator $12$.
