Ответ:
\(8\frac{7}{12}-2\frac{17}{36}=\frac{309}{36}-\frac{89}{36}=\frac{55}{9}\).
\(\frac{55}{9}\cdot2.7=\frac{55}{9}\cdot\frac{27}{10}=\frac{33}{2}\).
\(4\frac13:0.65=\frac{13}{3}:\frac{13}{20}=\frac{20}{3}\).
\(\frac{33}{2}-\frac{20}{3}=\frac{59}{6}\).
Ответ: \(\frac{59}{6}\)
