Ответ:
Пошаговое объяснение:
а) 1/2+5/7 = 7/14 + 10/14 = 17/14 = 1 3/14;
б) 4/5+1/6 = 24/30 + 5/30 = 29/30
в) 1/2-1/3 = 3/6 - 2/6 = 1/6;
г) 1/3-1/4 = 4/12 - 3/12 = 1/12;
д) 2/3-1/5 = 10/15 - 3/15 = 7/15;
е) 5/7 - 2/3 = 15/21 - 14/21 = 1/21
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Ответ:
Пошаговое объяснение:
а) 1/2+5/7 = 7/14 + 10/14 = 17/14 = 1 3/14;
б) 4/5+1/6 = 24/30 + 5/30 = 29/30
в) 1/2-1/3 = 3/6 - 2/6 = 1/6;
г) 1/3-1/4 = 4/12 - 3/12 = 1/12;
д) 2/3-1/5 = 10/15 - 3/15 = 7/15;
е) 5/7 - 2/3 = 15/21 - 14/21 = 1/21