Вопрос:

44. Вычислите: \(\frac{7}{30}+\frac{9}{8}:(4-3\frac{7}{22})-1\frac{5}{6}\).

Ответ:

\(4-3\frac{7}{22}=4-\frac{73}{22}=\frac{15}{22}\).

\(\frac{9}{8}:\frac{15}{22}=\frac{9}{8}\cdot\frac{22}{15}=\frac{33}{20}\).

\(\frac{7}{30}+\frac{33}{20}-\frac{11}{6}=\frac{14+99-220}{60}=-\frac{107}{60}=-1\frac{47}{60}\).

Ответ: \(-1\frac{47}{60}\).