2. Выполните деление:
а) $$\frac{4}{9} : \frac{1}{3} = \frac{4}{9} \cdot \frac{3}{1} = \frac{4 \cdot 3}{9 \cdot 1} = \frac{12}{9} = \frac{4}{3} = 1 \frac{1}{3}$$
Ответ: $$1 \frac{1}{3}$$
б) $$ \frac{5}{6} : 3 \frac{1}{8} = \frac{5}{6} : \frac{3 \cdot 8 + 1}{8} = \frac{5}{6} : \frac{25}{8} = \frac{5}{6} \cdot \frac{8}{25} = \frac{5 \cdot 8}{6 \cdot 25} = \frac{40}{150} = \frac{4}{15}$$
Ответ: $$\frac{4}{15}$$
в) $$-12 : (-\frac{6}{11}) = -12 \cdot (-\frac{11}{6}) = \frac{-12 \cdot (-11)}{6} = \frac{132}{6} = 22$$
Ответ: 22
г) $$2 \frac{3}{4} : (-1 \frac{1}{2}) = \frac{2 \cdot 4 + 3}{4} : (\frac{-(1 \cdot 2 + 1)}{2}) = \frac{11}{4} : (\frac{-3}{2}) = \frac{11}{4} \cdot (\frac{-2}{3}) = \frac{11 \cdot (-2)}{4 \cdot 3} = \frac{-22}{12} = -\frac{11}{6} = -1 \frac{5}{6}$$
Ответ: $$-1 \frac{5}{6}$$