`\text {@Luffy Cat}`
$\frac{6}{7}$+$\frac{5}{8}$
=$\frac{48}{56}$ + $\frac{35}{56}$
= $\frac{83}{56}$
$\frac{3}{5}$ - $\frac{3}{8}$
=$\frac{24}{40}$ - $\frac{15}{40}$
= $\frac{9}{40}$
$\frac{1}{4}$+$\frac{5}{6}$
=$\frac{3}{12}$ + $\frac{10}{12}$
= $\frac{13}{12}$
$\frac{4}{9}$-$\frac{1}{6}$
=$\frac{8}{18}$ - $\frac{3}{18}$
=$\frac{5}{18}$