[email protected] , ответ добавлен 17.05.2017 в 21:55

24 - (3 27/40 - 1 35/40) : (3/6 - 2/6) : 2 = 18,6

1) 3 27/40 - 1 35/40 = 2 67/40 - 1 35/40 = 1 32/40 = 1 целая 4/5
2) 3/6 - 2/6 = 1/6
3) 1 целая 4/5 : 1/6 = 9/5 * 6/1 = 54/5
4) 54/5 : 2 = 54/5 * 1/2 = 54/10 = 5,4
5) 24 - 5,4 = 18,6

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