Выполните действие 30 4/5-1 2/5*(1 4/5*(12 7/12-9 19/36)-17/35*1 11/34) Помогите...

Решите задачу:

$\begin{array}{l} 30\frac{4}{5} -1\frac{1}{5} \times \left( 1\frac{4}{5} \times \left( 12\frac{7}{12} -9\frac{19}{36} \right) -\frac{17}{36} \times 1\frac{11}{34} \right) \\ \frac{154}{5} -\frac{6}{5} \times \left( \frac{9}{5} \times \left( \frac{151}{12} -\frac{343}{36} \right) -\frac{17}{36} \times \frac{45}{34} \right) \\ \frac{154}{5} -\frac{6}{5} \times \left( \frac{9}{5} \times \frac{55}{18} -\frac{1}{7} \times \frac{9}{2} \right) \\ \frac{154}{5} -\frac{6}{5} \times \left( \frac{11}{2} -\frac{9}{14} \right) \\ \frac{154}{5} -\frac{6}{5} \times \frac{34}{7} \\ \frac{154}{5} -\frac{204}{35} =\frac{874}{35} =24\frac{24}{35} =24,97143... \end{array}$