2. Вычислите: a) $$4\frac{1}{6}\cdot3\frac{3}{5}$$; б) $$1\frac{2}{13}:1\frac{4}{11}$$; в) $$2\frac{2}{3}\cdot1\frac{1}{8}:6\frac{2}{3}$$.

a) $$4\frac{1}{6}\cdot3\frac{3}{5}$$ = $$\frac{25}{6}\cdot\frac{18}{5}$$ = $$\frac{25\cdot18}{6\cdot5}$$ = $$\frac{5\cdot6}{1\cdot1}$$ = 30

Ответ: 30

б) $$1\frac{2}{13}:1\frac{4}{11}$$ = $$\frac{15}{13}:\frac{15}{11}$$ = $$\frac{15}{13}\cdot\frac{11}{15}$$ = $$\frac{15\cdot11}{13\cdot15}$$ = $$\frac{1\cdot11}{13\cdot1}$$ = $$\frac{11}{13}$$

Ответ: $$\frac{11}{13}$$

в) $$2\frac{2}{3}\cdot1\frac{1}{8}:6\frac{2}{3}$$ = $$\frac{8}{3}\cdot\frac{9}{8}:\frac{20}{3}$$ = $$\frac{8}{3}\cdot\frac{9}{8}\cdot\frac{3}{20}$$ = $$\frac{8\cdot9\cdot3}{3\cdot8\cdot20}$$ = $$\frac{1\cdot3\cdot1}{1\cdot1\cdot20}$$ = $$\frac{3}{20}$$

Ответ: $$\frac{3}{20}$$