Решить Подробно дроби​

а) 8 1/3 + 6 1/2 + 3 5/6 = 8 2/6 + 6 3/6 + 3 5/6 = 17 10/6 = 17 5/3 = 18 2/3;

б) 12 3/8 + 5 1/4 + 7 1/2 = 12 3/8 + 5 2/8 + 7 4/8 = 24 9/8 = 25 1/8;

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в) 2 1/3 · 3/10 : 2 4/5 = 1/4

1) 2 1/3 · 3/10 = 7/3 ·3/10 = 7/10

2) 7/10 : 2 4/5 = 7/10 : 14/5 = 7/10 · 5/14 = (1·1)/(2·2) = 1/4

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г) 1 1/6 : 2 1/6 · 26 = 14

1) 1 1/6 : 2 1/6 = 7/6 : 13/6 = 7/6 · 6/13 = 7/13

2) 7/13 · 26/1 = (7·2)/(1·1) = 14