1. Восполии умножение: 1) \frac{5}{27} \cdot 3 2) \frac{2}{9} \cdot 3 \frac{1}{16} 3) 3 \frac{3}{11} \cdot 7 \frac{1}{3} 4) 70 \cdot \frac{5}{126} 5) \frac{24}{17} \cdot \frac{51}{40} 6) \frac{20}{23} \cdot \frac{43}{48} \cdot \frac{46}{73}

1) \(\frac{5}{27} \cdot 3 = \frac{5 \cdot 3}{27} = \frac{5 \cdot 1}{9} = \frac{5}{9}\)

2) \(\frac{2}{9} \cdot 3 \frac{1}{16} = \frac{2}{9} \cdot \frac{49}{16} = \frac{1}{9} \cdot \frac{49}{8} = \frac{49}{72}\)

3) \(3 \frac{3}{11} \cdot 7 \frac{1}{3} = \frac{36}{11} \cdot \frac{22}{3} = \frac{12}{1} \cdot \frac{2}{1} = 24\)

4) \(70 \cdot \frac{5}{126} = \frac{70}{1} \cdot \frac{5}{126} = \frac{35}{1} \cdot \frac{5}{63} = \frac{5}{1} \cdot \frac{5}{9} = \frac{25}{9} = 2\frac{7}{9}\)

5) \(\frac{24}{17} \cdot \frac{51}{40} = \frac{3}{1} \cdot \frac{3}{5} = \frac{9}{5} = 1 \frac{4}{5}\)

6) \(\frac{20}{23} \cdot \frac{43}{48} \cdot \frac{46}{73} = \frac{20}{1} \cdot \frac{43}{24} \cdot \frac{2}{73} = \frac{10}{1} \cdot \frac{43}{12} \cdot \frac{1}{73} = \frac{5}{1} \cdot \frac{43}{6} \cdot \frac{1}{73} = \frac{215}{438}\)

Ответ: 1) \(\frac{5}{9}\); 2) \(\frac{49}{72}\); 3) 24; 4) \(2\frac{7}{9}\); 5) \(1 \frac{4}{5}\); 6) \(\frac{215}{438}\)