Subtract $1\large\frac{2}{3}$ from the sum of $\large\frac{1}{3}$ and $ \large\frac{1}{5}$

Question

$\begin{array}{1 1} \large\frac{-17}{15} \\ \large\frac{17}{15} \\\large\frac{5}{3} \\ \large\frac{8}{15} \end{array} $