Ответ:
- \(\frac{9}{35}\cdot8=\frac{72}{35}=2\frac{2}{35}\).
- \(\frac{7}{21}\cdot16=\frac{1}{3}\cdot16=\frac{16}{3}=5\frac{1}{3}\).
- \(42\cdot\frac17=6\).
- \(\frac{6}{19}\cdot57=6\cdot3=18\).
- \(\frac{22}{25}\cdot\frac{10}{77}=\frac{44}{385}\).
- \(6\cdot\frac{15}{18}=6\cdot\frac56=5\).
- \(\frac{6}{35}\cdot\frac{14}{15}=\frac{4}{25}\).
- \(\frac{45}{15}\cdot\frac{8}{15}=3\cdot\frac{8}{15}=\frac85=1\frac35\).
Ответ: 1) \(2\frac{2}{35}\); 2) \(5\frac13\); 3) 6; 4) 18; 5) \(\frac{44}{385}\); 6) 5; 7) \(\frac425\); 8) \(1\frac35\).
