Найдите значение выражения 1)(2/7+3 1/2)*4 2/3 2)(4 1/5-2 3/4)*2 2/19

1)
$\frac{2}{7} + 3 \frac{1}{2} = \frac{4}{14} + 3 \frac{7}{14} = 3 \frac{11}{14}$
$3 \frac{11}{14} \times 4 \frac{2}{3} = \frac{53}{14} \times \frac{14}{3} = \frac{53}{3} = 17 \frac{2}{3}$
2)
$4 \frac{1}{5} - 2 \frac{3}{4} = 4 \frac{4}{20} - 2 \frac{15}{20} = \\ 3 \frac{24}{20} - 2 \frac{15}{20} = 1 \frac{9}{20}$
$1 \frac{9}{20} \times 2 \frac{2}{19} = \frac{29}{20} \times \frac{40}{19} = \\ \frac{29 \times 20}{19} = \frac{580}{19} = 30 \frac{10}{19}$