Ответ:

Первое выражение:

\(2\frac{2}{9}=\frac{20}{9}\), \(2.4=\frac{12}{5}\), \(1\frac{5}{6}=\frac{11}{6}\), \(1\frac{9}{16}=\frac{25}{16}\).

\(\frac{20}{9}\cdot\frac{12}{5}\cdot\frac{11}{6}\cdot\frac{25}{16}=\frac{275}{18}=15\frac{5}{18}\).

Второе выражение:

\(1.125=\frac{9}{8}\), \(1\frac{5}{6}=\frac{11}{6}\), \(1\frac{7}{9}=\frac{16}{9}\).

\(\frac{2}{3}\cdot\frac{9}{8}\cdot\frac{11}{6}\cdot\frac{16}{9}=\frac{44}{9}=4\frac{8}{9}\).

Ответ: \(15\frac{5}{18};\ 4\frac{8}{9}\).