Ответ:
\(3\frac{5}{6}=\frac{23}{6}\), \(2\frac{3}{4}=\frac{11}{4}\).
\(\left(\frac{23}{6}-\frac{11}{4}\right):\frac{7}{12}=\left(\frac{46}{12}-\frac{33}{12}\right)\cdot\frac{12}{7}=\frac{13}{12}\cdot\frac{12}{7}=\frac{13}{7}\).
Ответ: \(\frac{13}{7}\).
