Найдите значение выражения 14 1/6 -(8 9/10-b)при b=5 2/3

Решите задачу:

$14 \frac{1}{6} - (8 \frac{9}{10} - 5 \frac{2}{3} ) = \\ \\ = 14 \frac{1}{6} - (8 \frac{27}{30} - 5 \frac{20}{30} ) = \\ \\ = 14 \frac{1}{6} - 3 \frac{7}{30} = \\ \\ = 14 \frac{5}{30} - 3 \frac{7}{30} = \\ \\ = 13 \frac{35}{30} - 3 \frac{7}{30} = \\ \\ = 10 \frac{28}{30} = 10 \frac{14}{15}$