Найдите сумму: 7 8/15+8 17/20.

\[7\frac{8^{\backslash 4}}{15} + 8\frac{17^{\backslash 3}}{20} = 7\frac{32}{60} + 8\frac{51}{60} =\]

\[= 15\frac{83}{60} = 16\frac{23}{60}\]