Ответ:
Преобразуем смешанные числа: \(1\frac{1}{3}=\frac{4}{3}\), \(2\frac{4}{9}=\frac{22}{9}\).
\(\frac{3}{7}\cdot\frac{13}{15}=\frac{39}{105}=\frac{13}{35}\).
\(\frac{22}{9}:\frac{11}{12}=\frac{22}{9}\cdot\frac{12}{11}=\frac{8}{3}\).
\(\frac{4}{3}+\frac{13}{35}-\frac{8}{3}=-\frac{4}{3}+\frac{13}{35}=-\frac{140}{105}+\frac{39}{105}=-\frac{101}{105}\).
Ответ: \(-\frac{101}{105}\).
