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Ответы
Пошаговое объяснение:
13/18 + 7/12 = 26/36 + 21/36 = 47/36 = 1 11/36
5/7 - 3/5 = 25/35 - 21/35 = 4/35
5/6 - 3/8 - 1/12 = 20/24 - 9/24 - 2/24 = 9/24 = 3/8
3 4/7 - 2 3/5 = 3 20/35 - 2 21/35 = 2 55/35 - 2 21/35 = 34/35
6 5/6 + 2 3/8 = 6 20/24 + 2 9/24 = 8 29/24 = 9 5/24
4 5/14 + (5 1/12 - 3 4/21) = 4 30/84 + (5 7/84 - 3 16/84) = 4 30/84 + 5 7/84 - 3 16/84 = 9 37/84 - 3 16/84 = 6 21/84 = 6 1/4
Ответ:
Пошаговое объяснение:
а) 13/18 + 7/12 = 26/36 + 21/36 = 47/36 = 1 11/36
б) 5/7 - 3/5 = 25/35 - 21/35 = 4/35
в) 5/6 - 3/8 - 1/12 = 20/24 - 9/24 - 2/24 = 9/24 = 3/8
г) 3 4/7 - 2 3/5 = 3 20/35 - 2 21/35 = 2 55/35 - 2 21/35 = 34/35
д) 6 5/6 + 2 3/8 = 6 20/24 + 2 9/24 = 8 29/24 = 9 5/24
є) 4 5/14 + (5 1/12 - 3 4/21) = 6 1/4
1) 5 1/12 - 3 4/21 = 5 7/84 - 3 16/84 = 4 91/84 - 3 16/84 = 1 75/84 = 1 25/28
2) 4 5/14 + 1 25/28 = 4 10/28 + 1 25/28 = 5 35/28 = 6 7/28 = 6 1/4