a) 2\frac{3}{4} \cdot \frac{3}{7} = \(\frac{11}{4} \cdot \frac{3}{7}\) = \(\frac{33}{28}\)
Ответ: \(\frac{33}{28}\)
б) \(\frac{5}{9} \cdot 1\frac{2}{3}\) = \(\frac{5}{9} \cdot \frac{5}{3}\) = \(\frac{25}{27}\)
Ответ: \(\frac{25}{27}\)
в) 3\frac{4}{11} \cdot \frac{5}{11} = \(\frac{37}{11} \cdot \frac{5}{11}\) = \(\frac{185}{121}\)
Ответ: \(\frac{185}{121}\)
г) 3\frac{1}{9} \cdot \frac{3}{7} = \(\frac{28}{9} \cdot \frac{3}{7}\) = \(\frac{4}{3} \cdot \frac{1}{1}\) = \(\frac{4}{3}\)
Ответ: \(\frac{4}{3}\)
д) 1\frac{5}{8} \cdot \frac{8}{13} = \(\frac{13}{8} \cdot \frac{8}{13}\) = 1
Ответ: 1
e) \frac{13}{24} \cdot 1\frac{11}{13} = \(\frac{13}{24} \cdot \frac{24}{13}\) = 1
Ответ: 1