\[5\frac{4}{15} + y = - 2\frac{5}{12}\]
\[\frac{79}{15} + y = - \frac{29}{12}\]
\[y = - \frac{29^{\backslash 5}}{12} - \frac{79^{\backslash 4}}{15}\]
\[y = \frac{- 145 - 316}{60}\]
\[y = \frac{- (145 + 316)}{60}\]
\[y = - \frac{461}{60}\]
\[y = - 7\frac{41}{60}\]
\[Ответ:\ y = - 7\frac{41}{60}.\]