1) \(\frac{5}{6} \cdot \frac{3}{20} = \frac{5 \cdot 3}{6 \cdot 20} = \frac{15}{120} = \frac{1}{8}\)
2) \(\frac{3}{7} \cdot \frac{6}{11} = \frac{3 \cdot 6}{7 \cdot 11} = \frac{18}{77}\)
1) \(4 \cdot \frac{2}{41} = \frac{4 \cdot 2}{41} = \frac{8}{41}\)
2) \(6 \cdot \frac{7}{18} = \frac{6 \cdot 7}{18} = \frac{42}{18} = \frac{7}{3} = 2\frac{1}{3}\)
1) \(\frac{7}{16} \cdot \frac{8}{49} = \frac{7 \cdot 8}{16 \cdot 49} = \frac{1}{14}\)
2) \(\frac{4}{7} \cdot \frac{8}{9} = \frac{4 \cdot 8}{7 \cdot 9} = \frac{32}{63}\)
Ответ: 1) 1/8, 2) 18/77, 1) 8/41, 2) 2 1/3, 1) 1/14, 2) 32/63