2. Найдите частное:
1) $$9\frac{3}{4}:2\frac{1}{6} = \frac{39}{4}:\frac{13}{6} = \frac{39}{4} \cdot \frac{6}{13} = \frac{39 \cdot 6}{4 \cdot 13} = \frac{3 \cdot 3}{2 \cdot 1} = \frac{9}{2} = 4\frac{1}{2}$$
Ответ: $$4\frac{1}{2}$$
2) $$3\frac{1}{3}:2\frac{1}{2} = \frac{10}{3}:\frac{5}{2} = \frac{10}{3} \cdot \frac{2}{5} = \frac{10 \cdot 2}{3 \cdot 5} = \frac{2 \cdot 2}{3 \cdot 1} = \frac{4}{3} = 1\frac{1}{3}$$
Ответ: $$1\frac{1}{3}$$
3) $$4\frac{4}{7}:\frac{8}{21} = \frac{32}{7}:\frac{8}{21} = \frac{32}{7} \cdot \frac{21}{8} = \frac{32 \cdot 21}{7 \cdot 8} = \frac{4 \cdot 3}{1 \cdot 1} = 12$$
Ответ: 12