5.540 Найдите частное:

\(\frac{5}{4} : \frac{2}{15} = \frac{5}{4} \cdot \frac{15}{2} = \frac{75}{8}\)

\(\frac{2}{3} : \frac{8}{9} = \frac{2}{3} \cdot \frac{9}{8} = \frac{18}{24} = \frac{3}{4}\)

\(\frac{64}{131} : \frac{32}{52} = \frac{64}{131} \cdot \frac{52}{32} = \frac{2 \cdot 52}{131} = \frac{104}{131}\)

\(\frac{64}{125} : 4 = \frac{64}{125} \cdot \frac{1}{4} = \frac{16}{125}\)

\(9 : \frac{3}{4} = 9 \cdot \frac{4}{3} = 3 \cdot 4 = 12\)