2. 1) Вычислите: ($\frac{5}{6} - \frac{7}{18}$) $\cdot \frac{3}{16}$.

$\frac{5}{6} - \frac{7}{18} = \frac{5 \cdot 3}{6 \cdot 3} - \frac{7}{18} = \frac{15}{18} - \frac{7}{18} = \frac{15-7}{18} = \frac{8}{18} = \frac{4}{9}$ $\frac{4}{9} \cdot \frac{3}{16} = \frac{4 \cdot 3}{9 \cdot 16} = \frac{12}{144} = \frac{1}{12}$ Ответ: $\frac{1}{12}$