[email protected] , ответ добавлен 19.07.2018 в 11:38

7/8 > 2/8
6/8 < 7/8
1/8 < 5/8

3/10 и 2/5
2/5 = 2*2/5*2 = 4/10
3/10 < 4/10
3/10 < 2/5

1/2 и 5/10
1/2 = 1*5/2*5 = 5/10
5/10 = 5/10
1/2 = 5/10

4/6 и 7/9
4/6 = 4*3/6*3 = 12/18
7/9 = 7*2/9*2 = 14/18
12/18 < 14/18
4/6 < 7/9

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