Since $\frac{49}{140}$ and $\frac{100}{140}$ have the same denominator, add them by adding their numerators.
$$sort(\frac{49+100}{140},\frac{7}{10})$$
Add $49$ and $100$ to get $149$.
$$sort(\frac{149}{140},\frac{7}{10})$$
Least common denominator of the numbers in the list $\frac{149}{140},\frac{7}{10}$ is $140$. Convert numbers in the list to fractions with denominator $140$.
$$\frac{149}{140},\frac{98}{140}$$
To sort the list, start from a single element $\frac{149}{140}$.
$$\frac{149}{140}$$
Insert $\frac{98}{140}$ to the appropriate location in the new list.
$$\frac{98}{140},\frac{149}{140}$$
Replace the obtained fractions with the initial values.
