Ответ:
Пошаговое объяснение:
1) = -9/18 + 7/18 = -2/18 = -1/9
2) = 6/8 + 7/8 = 13/8 = 1 5/8
3) = -15/48 - 28/48 = -43/48
4) = -35/60 + 32/60 = -3/60 = -1/20
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Verified answer
Ответ:
Пошаговое объяснение:
1) = -9/18 + 7/18 = -2/18 = -1/9
2) = 6/8 + 7/8 = 13/8 = 1 5/8
3) = -15/48 - 28/48 = -43/48
4) = -35/60 + 32/60 = -3/60 = -1/20