Выполните действия: -8/15-5/6.

\[- \frac{8}{15} - \frac{5}{6} = - \left( \frac{8^{\backslash 2}}{15} + \frac{5^{\backslash 5}}{6} \right) =\]

\[= - \left( \frac{16}{30} + \frac{25}{30} \right) = - \frac{41}{30} = - 1\frac{11}{30}.\]