Автор - anastasia200227

18 2/7 - 19 помогите

Ответ

Автор - olegkushenko
18 2/7 - 18 7/7 = - 5/7

Ответ

Автор - missDi8
 18 целых 2/7 - 19 = 18 2/7 - 18 7/7 = - 5/7 

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