Вычисли (3 3/14+ 1 11/14)+ 713/14- ( 5 5/14-2 6/14)
(3 3/14+1 11/14)+713/14- (5 5/14-2 6/14)=(45/14+25/14)+713/14-(75/14-34/14)=70/14+713/14-41/14=742/14=53
Ответ: 53.
1) 3 3/14 + 1 11/14 = 4 14/14 = 5;
2) 5 5/14 - 2 6/14 = 4 19/14 - 2 6/14 = 2 13/14;
3) 5 - 2 13/14 = 2 1/14 = 29/14;
4) 29/14 + 713/14 = 742/14 = 53.
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