Ответ:

\(1\frac{3}{5}+2\frac{2}{15}=\frac{8}{5}+\frac{32}{15}=\frac{56}{15}\).

\(\frac{56}{15}\cdot\frac{9}{56}=\frac{3}{5}\).

Ответ: \(\frac{3}{5}\).