6.241 Сравните выражения: 3 6 2 8 a) +유류+음 17 17 17 17' 7 3 9 5 б) 19-19 и 16-16' 7 5 3 9 в) 10+14 и 8+16

Разбираемся:

• а) \(\frac{3}{17} + \frac{6}{17} = \frac{3+6}{17} = \frac{9}{17} \) и \(\frac{2}{17} + \frac{8}{17} = \frac{2+8}{17} = \frac{10}{17} \). \(\frac{9}{17} < \frac{10}{17} \)
• б) \(\frac{7}{19} - \frac{3}{19} = \frac{7-3}{19} = \frac{4}{19} \) и \(\frac{9}{16} - \frac{5}{16} = \frac{9-5}{16} = \frac{4}{16} = \frac{1}{4} = \frac{4,75}{19} \). \(\frac{4}{19} < \frac{4,75}{19} \)
• в) \(\frac{7}{10} + \frac{5}{14} = \frac{49}{70} + \frac{25}{70} = \frac{49+25}{70} = \frac{74}{70} = \frac{37}{35} = 1 \frac{2}{35} \) и \(\frac{3}{8} + \frac{9}{16} = \frac{6}{16} + \frac{9}{16} = \frac{6+9}{16} = \frac{15}{16} \). \(1 \frac{2}{35} > \frac{15}{16} \)