Решение задачи #76861
Вычислите: (31/6-12/6)+65/6; 74/9-(61/9-32/9); (94/7+82/7)+15/7; 31/12+(43/12-26/12); 73/25-(17/25+49/25); 84/45+(31/45-23/45)
1) (31/6-12/6)+65/6 = 19/6 + 65/6 = 84/6 = 14
2) 74/9-(61/9-32/9) = 74/9 - 29/9 = 45/9 = 5
3) (94/7+82/7)+15/7 = 176/7 + 15/7 = 191/7 = 27 2/7
4) 31/12+(43/12-26/12) = 31/12 + 17/12 = 48/12 = 4
5) 73/25-(17/25+49/25) = 73/25 - 66/25 = 7/25
6) 84/45+(31/45-23/45) = 84/45 + 8/45 = 92/45 = 2 2/45
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