1 1\3*2-3\4*(2 3\5+1 2\15) : 2 1\5

Решите задачу:

$1 \frac{1}{3} *2 - \frac{3}{4} *(2 \frac{3}{5} +1 \frac{2}{15} ) : 2 \frac{1}{5} = \\ \\ = \frac{4}{3} * \frac{2}{1} -\frac{3}{4} *( \frac{13*3}{5*3} + \frac{17}{15} ) : \frac{11}{5} = \\ \\ = \frac{8}{3} - \frac{3}{4} * \frac{39+17}{15} * \frac{5}{11} = \\ \\ = \frac{8}{3} - \frac{3*56*5}{4*15*11}= \frac{8}{3} - \frac{1*14*1}{1*1*11} = \\ \\ = \frac{8*11-14*3}{33} = \frac{88-42}{33} = \frac{46}{33} =1 \frac{13}{33}$