9) -2,4 + 3\(\frac{1}{6}\) =

\(-2.4=-\frac{12}{5}\), \(3\frac{1}{6}=\frac{19}{6}\).

\(-\frac{12}{5}+\frac{19}{6}=\frac{-72+95}{30}=\frac{23}{30}\).

Ответ: \(\frac{23}{30}\).