Выполни действия: 1) 30 * 1/32

Конечно, давай решим эти примеры вместе! 1) $30 \cdot \frac{1}{32} = \frac{30}{32} = \frac{15}{16}$ 2) $\frac{3}{33} \cdot 15 = \frac{3 \cdot 15}{33} = \frac{45}{33} = \frac{15}{11} = 1\frac{4}{11}$ 3) $\frac{2}{11} \cdot \frac{2}{3} = \frac{2 \cdot 2}{11 \cdot 3} = \frac{4}{33}$ 4) $\frac{33}{41} \cdot \frac{1}{2} = \frac{33 \cdot 1}{41 \cdot 2} = \frac{33}{82}$ 5) $\frac{35}{4} \cdot \frac{2}{135} = \frac{35 \cdot 2}{4 \cdot 135} = \frac{70}{540} = \frac{7}{54}$ 6) $\frac{39}{4} \cdot \frac{2}{75} = \frac{39 \cdot 2}{4 \cdot 75} = \frac{78}{300} = \frac{13}{50}$ 7) $5\frac{4}{9} \cdot 6\frac{3}{7} = \frac{49}{9} \cdot \frac{45}{7} = \frac{49 \cdot 45}{9 \cdot 7} = \frac{7 \cdot 5}{1 \cdot 1} = 35$ 8) $9\frac{1}{3} \cdot 3\frac{3}{4} = \frac{28}{3} \cdot \frac{15}{4} = \frac{28 \cdot 15}{3 \cdot 4} = \frac{7 \cdot 5}{1 \cdot 1} = 35$ 9) $15 : \frac{5}{12} = 15 \cdot \frac{12}{5} = \frac{15 \cdot 12}{5} = \frac{3 \cdot 12}{1} = 36$ 10) $\frac{14}{23} : 20 = \frac{14}{23} \cdot \frac{1}{20} = \frac{14}{23 \cdot 20} = \frac{7}{230}$ 11) $\frac{3}{4} : \frac{9}{10} = \frac{3}{4} \cdot \frac{10}{9} = \frac{3 \cdot 10}{4 \cdot 9} = \frac{1 \cdot 5}{2 \cdot 3} = \frac{5}{6}$ 12) $1\frac{3}{10} : 2\frac{1}{2} = \frac{13}{10} : \frac{5}{2} = \frac{13}{10} \cdot \frac{2}{5} = \frac{13 \cdot 2}{10 \cdot 5} = \frac{13}{25}$ 13) $1\frac{1}{2} : 2\frac{1}{2} = \frac{3}{2} : \frac{5}{2} = \frac{3}{2} \cdot \frac{2}{5} = \frac{3 \cdot 2}{2 \cdot 5} = \frac{3}{5}$ 14) $0,5 \cdot \frac{9}{13} = \frac{1}{2} \cdot \frac{9}{13} = \frac{1 \cdot 9}{2 \cdot 13} = \frac{9}{26}$ 15) $0,375 : \frac{9}{32} = \frac{375}{1000} : \frac{9}{32} = \frac{3}{8} : \frac{9}{32} = \frac{3}{8} \cdot \frac{32}{9} = \frac{3 \cdot 32}{8 \cdot 9} = \frac{1 \cdot 4}{1 \cdot 3} = \frac{4}{3} = 1\frac{1}{3}$ 16) $\frac{3}{4} : 0,3 = \frac{3}{4} : \frac{3}{10} = \frac{3}{4} \cdot \frac{10}{3} = \frac{3 \cdot 10}{4 \cdot 3} = \frac{10}{4} = \frac{5}{2} = 2\frac{1}{2}$