368. 3 и 4; 6 и 5; 7 и 8; 9 и 8

Давай сравним дроби \(\frac{3}{4}\) и \(\frac{4}{5}\). \(\frac{3}{4} = 0.75\) \(\frac{4}{5} = 0.8\) \(0.75 < 0.8\), значит, \(\frac{3}{4} < \frac{4}{5}\) Сравним дроби \(\frac{5}{6}\) и \(\frac{4}{5}\). \(\frac{5}{6} \approx 0.83\) \(\frac{4}{5} = 0.8\) \(0.83 > 0.8\), значит, \(\frac{5}{6} > \frac{4}{5}\) Сравним дроби \(\frac{7}{8}\) и \(\frac{8}{9}\). \(\frac{7}{8} = 0.875\) \(\frac{8}{9} \approx 0.89\) \(0.875 < 0.89\), значит, \(\frac{7}{8} < \frac{8}{9}\) Сравним дроби \(\frac{9}{10}\) и \(\frac{8}{9}\). \(\frac{9}{10} = 0.9\) \(\frac{8}{9} \approx 0.89\) \(0.9 > 0.89\), значит, \(\frac{9}{10} > \frac{8}{9}\)

Ответ: \(\frac{3}{4} < \frac{4}{5}\); \(\frac{5}{6} > \frac{4}{5}\); \(\frac{7}{8} < \frac{8}{9}\); \(\frac{9}{10} > \frac{8}{9}\)

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