Автор - Yyyyyyoo

-7 3/6-(2 1/8-(-7 7/12)​

Ответ

Проверено экспертом

Автор - prettypushkova

- 7 3/6 - (2 1/8 - (-7 7/12)) = - 17 целых 5/24.

1) 2 1/8 - (-7 7/12) = 2 1/8 + 7 7/12 = 2 3/24 + 7 14/24 = 9 17/24

2) - 7 3/6 - 9 17/24 = - (7 12/24 + 9 17/24) = - 16 29/24 = - 17 5/24

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