Ответ:
а) \(\left(4\frac{1}{3}+3\frac{1}{5}\right):113=\left(\frac{13}{3}+\frac{16}{5}\right):113=\frac{113}{15}:113=\frac{1}{15}\).
б) \(\left(6-7\frac{1}{8}\right)\cdot\left(\frac{2}{9}+\frac{2}{3}\right)=\left(6-\frac{57}{8}\right)\cdot\frac{8}{9}=-\frac{9}{8}\cdot\frac{8}{9}=-1\).
в) \(17:\left(4\frac{1}{3}-3\frac{1}{5}\right)=17:\left(\frac{13}{3}-\frac{16}{5}\right)=17:\frac{17}{15}=15\).
г) \(\left(15-4\frac{1}{8}\right)\cdot\left(3\frac{14}{15}-2\frac{3}{5}\right)=\frac{87}{8}\cdot\left(\frac{59}{15}-\frac{13}{5}\right)=\frac{87}{8}\cdot\frac{4}{3}=\frac{29}{2}=14\frac{1}{2}\).
