Помогите, тут нужен распределительный закон

Решите задачу:

$- 11 \frac{1}{4} (1 \frac{11}{27} - 2 \frac{16}{27} ) = - 45 \\ - 11 \frac{1}{4} \times 1 \frac{11}{27} = - \frac{45}{4} \times \frac{38}{27} =$
$= - \frac{5 \times 19}{2 \times 3} = - \frac{95}{6} = - 15 \frac{5}{6}$
$- \frac{45}{4} \times \frac{70}{27} = - \frac{5 \times 35}{2 \times 3} = - \frac{175}{6} \\ = - 29 \frac{1}{6}$
$- 15 \frac{5}{6} - 29 \frac{1}{6} = - 44 \frac{6}{6} = - 45$