Вопрос:

Выполни сложение или вычитание: 7/12 + 3/12

Фотография

Ответ ассистента

7/12 + 3/12 = 10/12 = 5/6 4/5 - 3/5 = 1/5 7 + 1/5 = 7 1/5 3/7 + 2/7 = 5/7 4/11 + 6/11 = 10/11 3 - 4/7 = 2 3/7 13/55 - 5/55 = 8/55 7/8 - 5/8 = 2/8 = 1/4 1 - 6/11 = 5/11 11/18 - 7/18 = 4/18 = 2/9 76/100 - 67/100 = 9/100 1 + 3/7 = 4 3/7 7/10 + 1/10 = 8/10 = 4/5 6/13 + 7/13 = 13/13 = 1 8 2/5 + 3 = 11 2/5 15/8 - 7/8 = 8/8 = 1 43/56 - 33/56 = 10/56 = 5/28 7 - 4/9 = 6 5/9 12/15 + 7/15 = 19/15 = 1 4/15 6/23 + 20/23 = 26/23 = 1 3/23 8 7/9 - 6 = 2 7/9 45/100 + 35/100 = 80/100 = 4/5 4/7 + 2/7 = 6/7 4 + 1 3/5 = 5 3/5 65/76 - 25/76 = 40/76 = 10/19 3/4 + 3/4 = 6/4 = 3/2 = 1 1/2 7 - 2 1/2 = 4 1/2 40/100 - 41/100 = -1/100 5/6 - 1/6 = 4/6 = 2/3 7/11 + 5 = 5 7/11 17/67 + 13/67 = 30/67 4/9 - 2/9 = 2/9 4 5/16 - 4 = 5/16

Другие решения

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