Вычислите с разбором; 4/5+2/3; 5/6+7/9; 3/4-1/6; 7/8-5/8; 4/9+6/27; 9/10+4/5; 5/6-2/3; 5/7-9/14

Question

Математика

Тит

28 мая, 13:24

Вычислите с разбором; 4/5+2/3; 5/6+7/9; 3/4-1/6; 7/8-5/8; 4/9+6/27; 9/10+4/5; 5/6-2/3; 5/7-9/14

+1

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Дарьюшка · Answer 1

4/5+2/3 = 12/15 + 10/15 = 22/15 = 1 7/15

5/6+7/9 = 15/18 + 14/18 = 29/18 = 1 11/18

3/4-1/6 = 9/12 - 2/12 = 7/12

7/8-5/8 = 2/8 = 1/4

4/9+6/27 = 12/27 + 6/27 = 18/27 = 2/3

9/10+4/5 = 9/10 + 8/10 = 17/10 = 1 7/10

5/6-2/3 = 5/6 - 4/6 = 1/6

5/7-9/14 = 10/14 - 9/14 = 1/14