Ответ:
Пошаговое объяснение:
-4/5+(-4/7)= -4/5 - 4/7 = -28/35 - 20/35 = -48/35 = - 1 13/35
-3 5/12+(-4 2/15)= -3 5/12 - 4 2/15 = -3 25/60 - 4 8/60 = -7 33/60 = -7 11/20
-3 3/14+(-1 5/63)= -3 3/14 - 1 5/63 = -3 27/126 - 1 10/126 = -4 37/126
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Ответ:
Пошаговое объяснение:
-4/5+(-4/7)= -4/5 - 4/7 = -28/35 - 20/35 = -48/35 = - 1 13/35
-3 5/12+(-4 2/15)= -3 5/12 - 4 2/15 = -3 25/60 - 4 8/60 = -7 33/60 = -7 11/20
-3 3/14+(-1 5/63)= -3 3/14 - 1 5/63 = -3 27/126 - 1 10/126 = -4 37/126