Действие 1: 25/34 - 8/34 = (25 - 8) / 34 = 17/34
Действие 2: 6 13/54 + 2 5/54 = (6 + 2) + (13 + 5) / 54 = 8 + 18 / 54 = 8 + 1/3 = 8 1/3
Действие 1: 25/34 - 8/34 = (25 - 8) / 34 = 17/34
Действие 2: 6 13/54 + 2 5/54 = (6 + 2) + (13 + 5) / 54 = 8 + 18 / 54 = 8 + 1/3 = 8 1/3