1) \(\frac{8}{29} + \frac{14}{29} - \frac{17}{29} = \frac{8 + 14 - 17}{29} = \frac{22 - 17}{29} = \frac{5}{29}\)
2) \(7\frac{5}{31} - 4\frac{2}{31} + 2\frac{11}{31} = (7 - 4 + 2) + (\frac{5}{31} - \frac{2}{31} + \frac{11}{31}) = 5 + \frac{5 - 2 + 11}{31} = 5 + \frac{14}{31} = 5\frac{14}{31}\)
3) \(1 - \frac{18}{27} = \frac{27}{27} - \frac{18}{27} = \frac{27 - 18}{27} = \frac{9}{27} = \frac{1}{3}\)
4) \(7\frac{3}{7} - 2\frac{6}{7} = 7\frac{3}{7} - 2\frac{6}{7} = 6\frac{10}{7} - 2\frac{6}{7} = (6 - 2) + (\frac{10}{7} - \frac{6}{7}) = 4 + \frac{4}{7} = 4\frac{4}{7}\)
Ответ:
1) \(\frac{5}{29}\)
2) \(5\frac{14}{31}\)
3) \(\frac{1}{3}\)
4) \(4\frac{4}{7}\)
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