Ответ:

\(2\frac4{15}=\frac{34}{15}\), \(1\frac1{15}=\frac{16}{15}\).

\(\frac{34}{15}\cdot\left(2−\frac{16}{15}\right):\frac49+\frac23=\frac{34}{15}\cdot\frac{14}{15}\cdot\frac94+\frac23=\frac{119}{25}+\frac23=\frac{407}{75}\).

Ответ: \(\frac{407}{75}=5\frac{32}{75}\).