- 31/7 +(- 13/14)= - 31/7 - 13/14= - 62/14 - 13/14= - 75/14
Ответ:
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- 31/7 +(- 13/14)= - 31/7 - 13/14= - 62/14 - 13/14= - 75/14
Ответ: