-3,8*(17/7+3/7*(-2,5))-69/25=

Решите задачу:

$- 3.8 \times( \frac{17}{7} + \frac{3}{7} \times ( - 2.5)) - \frac{69}{25} = - \frac{19}{5} \times ( \frac{17}{7} + \frac{3}{7} \times ( - \frac{5}{2} )) - \frac{69}{25} = - \frac{19}{5} ( \frac{17}{7} - \frac{15}{14} ) - \frac{69}{25} = - \frac{19}{5} \times \frac{19}{14} - \frac{69}{25} = - \frac{361}{70} - \frac{69}{25} = - \frac{2771}{350} = - 7 \frac{321}{350}$