Ответ:
- \(2\frac{1}{5}=\frac{2\cdot5+1}{5}=\frac{11}{5}\).
- \(3\frac{3}{7}=\frac{3\cdot7+3}{7}=\frac{24}{7}\).
- \(5\frac{2}{9}=\frac{5\cdot9+2}{9}=\frac{47}{9}\).
Ответ: \(\frac{11}{5};\ \frac{24}{7};\ \frac{47}{9}\).
Ответ: \(\frac{11}{5};\ \frac{24}{7};\ \frac{47}{9}\).