Пошаговое объяснение:
8 7/10 - (7 4/5 - 6 1/2) =
8 7/10 - (7 8/10 - 6 5/10) =
8 7/10 - 1 3/10 = 7 4/10 = 7 2/5
7 1/2 - (9 3/50 - 5 7/25) =
7 25/50 - (9 3/50 - 5 14/50) =
7 25/50 - (8 53/50 - 5 14/50) =
7 25/50 - 3 39/50 =
6 75/50 - 3 39/50 = 3 36/50 = 3 18/25
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Пошаговое объяснение:
8 7/10 - (7 4/5 - 6 1/2) =
8 7/10 - (7 8/10 - 6 5/10) =
8 7/10 - 1 3/10 = 7 4/10 = 7 2/5
7 1/2 - (9 3/50 - 5 7/25) =
7 25/50 - (9 3/50 - 5 14/50) =
7 25/50 - (8 53/50 - 5 14/50) =
7 25/50 - 3 39/50 =
6 75/50 - 3 39/50 = 3 36/50 = 3 18/25