a) \(\frac{3}{4} : \frac{7}{6} = \frac{3}{4} \cdot \frac{6}{7} = \frac{3 \cdot 6}{4 \cdot 7} = \frac{18}{28} = \frac{9}{14}\)
б) \(20 : \frac{5}{8} = 20 \cdot \frac{8}{5} = \frac{20 \cdot 8}{5} = \frac{160}{5} = 32\)
в) \(\frac{7}{9} : 14 = \frac{7}{9} \cdot \frac{1}{14} = \frac{7}{9 \cdot 14} = \frac{7}{126} = \frac{1}{18}\)