Question

Помогите решить пример ​

Answer 1

Ответ:

$6\frac{3}{8} * 1\frac{8}{17} - 2\frac{3}{8} : 1\frac{1}{4} + \frac{2}{5} = \frac{51}{8} * \frac{25}{17} - \frac{19}{8} : \frac{5}{4} + \frac{2}{5} = \frac{51*25}{8*17} - \frac{19*4}{8*5} + \frac{2}{5} = \frac{75}{8} - \frac{19}{10} + \frac{2}{5}$ = $\frac{75}{8} - \frac{19+4}{10} = \frac{75}{8} - \frac{23}{10} = 9\frac{3}{8} - 2\frac{3}{10} = 7\frac{15-12}{40} = 7\frac{3}{40}$