We coverted Mixed Numbers to Improper Fractions

Mixed numbers to improper fractions to make calculations easier.

$$
\(\begin{aligned}
& \text { 1. } 12 \frac{1}{5}=\frac{61}{5} \\
& \text { 2. } 5 \frac{1}{12}=\frac{61}{12}
\end{aligned}\)
$$


Now, the expression becomes:

$$
\(\sqrt{\frac{\left(\frac{61}{5}\right)^2-\left(\frac{61}{12}\right)^4}{\left(\frac{61}{5}\right)^2-\left(\frac{61}{12}\right)^2}}\)
$$