Question

помогите пжжжжж помогите​

Answer 1

Ответ:

$3\frac{3}{8} . 1\frac{1}{19} + 1\frac{1}{19} . 1\frac{7}{12} - 4\frac{1}{6} . 1\frac{1}{19} = \frac{20}{19} . (\frac{27}{8} + \frac{19}{12} - \frac{25}{6}) = \frac{20}{19} . \frac{81 + 38 - 100}{24} = \frac{20 * 19}{19 * 24} = \frac{5}{6}$