12 2/13 - (8 2/13 + 1 5/13)=?
28 2/21 - (14 17/21 + 11 8/21)=?
9 13/19 + (8 18/19 - 3 15/19)=?
10 4/21 - (4 10/21 + 3 19/21)=?
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х-1 5/7= 2 1/7
(12 5/13 + y)- 2 9/131 = 7/13
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При делении числа А на 12 получилось 10 5/12. Найди число А.
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ДАю 26!
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