### Theory:

Like fractions are fractions with the same denominator.
Example:
$\frac{1}{8},\phantom{\rule{0.147em}{0ex}}\frac{2}{8},\phantom{\rule{0.147em}{0ex}}\frac{3}{8}$
For fractions with the same denominator, the fraction with the greatest numerator will be the largest fraction.
Example:
Find the largest fraction among $\frac{1}{8},\phantom{\rule{0.147em}{0ex}}\frac{2}{8},\phantom{\rule{0.147em}{0ex}}\frac{3}{8}$

All the fractions have the same denominator $$8$$ so, they are like fractions.

Ordering the above numbers will result in $\frac{1}{8}<\frac{2}{8}<\frac{3}{8}$

Among the numerators, $$3$$ is the greatest and hence $$3/8$$ is the largest fraction.