Ответ:
\(\frac{8}{3}-\frac{3}{10}=\frac{80}{30}-\frac{9}{30}=\frac{71}{30}\).
\(\frac{9}{2}\cdot\frac{71}{30}=\frac{213}{20}\).
\(\frac{213}{20}:\frac{4}{5}=\frac{213}{20}\cdot\frac{5}{4}=\frac{213}{16}\).
Ответ: \(\frac{213}{16}=13\frac{5}{16}\).
\(\frac{8}{3}-\frac{3}{10}=\frac{80}{30}-\frac{9}{30}=\frac{71}{30}\).
\(\frac{9}{2}\cdot\frac{71}{30}=\frac{213}{20}\).
\(\frac{213}{20}:\frac{4}{5}=\frac{213}{20}\cdot\frac{5}{4}=\frac{213}{16}\).
Ответ: \(\frac{213}{16}=13\frac{5}{16}\).