3 2/7-2 1/5=115/35-77/35=38/35=1 3/35
Ответ: 1 целая 3/35
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3 2/7 - 2 1/5 = 3 10/35 - 2 7/35 = 1 3/353 2/7-2 1/5=115/35-77/35=38/35=1 3/35
Ответ: 1 целая 3/35