Ответ:
а)
| b | c | b·c |
|---|---|---|
| \(\frac{3}{8}\) | \(\frac{3}{2}\) | \(\frac{9}{16}\) |
| \(\frac{3}{4}\) | \(\frac{4}{7}\) | \(\frac{9}{21}\) |
| \(\frac{8}{7}\) | \(\frac{2}{3}\) | \(\frac{16}{21}\) |
б)
| b | c | b:c |
|---|---|---|
| \(\frac{5}{6}\) | \(\frac{4}{9}\) | \(\frac{15}{8}\) |
| \(\frac{7}{10}\) | \(\frac{7}{5}\) | \(\frac{1}{2}\) |
| \(\frac{1}{2}\) | \(\frac{5}{4}\) | \(\frac{2}{5}\) |
