Since $-\frac{11}{12}$ and $\frac{16}{12}$ have the same denominator, subtract them by subtracting their numerators.
$$sort(\frac{39}{10},\frac{-11-16}{12})$$
Subtract $16$ from $-11$ to get $-27$.
$$sort(\frac{39}{10},\frac{-27}{12})$$
Reduce the fraction $\frac{-27}{12}$ to lowest terms by extracting and canceling out $3$.
$$sort(\frac{39}{10},-\frac{9}{4})$$
Least common denominator of the numbers in the list $\frac{39}{10},-\frac{9}{4}$ is $20$. Convert numbers in the list to fractions with denominator $20$.
$$\frac{78}{20},-\frac{45}{20}$$
To sort the list, start from a single element $\frac{78}{20}$.
$$\frac{78}{20}$$
Insert $-\frac{45}{20}$ to the appropriate location in the new list.
$$-\frac{45}{20},\frac{78}{20}$$
Replace the obtained fractions with the initial values.
