18. \(\left(\frac{5}{6}+1\frac{1}{10}\right)\cdot24\)

\(1\frac{1}{10}=\frac{11}{10}\).

\(\left(\frac{5}{6}+\frac{11}{10}\right)\cdot24=\left(\frac{25}{30}+\frac{33}{30}\right)\cdot24=\frac{58}{30}\cdot24=\frac{29}{15}\cdot24=\frac{232}{5}=46\frac{2}{5}\).

Ответ: \(46\frac{2}{5}\).