2.313 Найдите произведение: а) 8/9 · 3/4; б) 14/17 · 34/63; в) 11/45 · 9/22; г) 35/8 · 16/7

2.313

а) \(\frac{8}{9}\cdot\frac{3}{4}=\frac{2}{3}\);

б) \(\frac{14}{17}\cdot\frac{34}{63}=\frac{4}{9}\);

в) \(\frac{11}{45}\cdot\frac{9}{22}=\frac{1}{10}\);

г) \(\frac{35}{8}\cdot\frac{16}{7}=10\);

д) \(\frac{51}{29}\cdot\frac{58}{62}=\frac{51}{31}=1\frac{20}{31}\);

е) \(\frac{51}{103}\cdot\frac{103}{119}=\frac{51}{119}=\frac{3}{7}\);

ж) \(\frac{1}{4}\cdot\frac{4}{5}\cdot\frac{5}{6}=\frac{1}{6}\);

з) \(\frac{4}{15}\cdot\frac{30}{49}\cdot\frac{7}{8}=\frac{1}{7}\).