Пошаговое объяснение:
а) 4 8/11 - 1 9/11 = 3 19/11 - 1 9/11 = 3 10/11
б) 13 3/7 - 5 6/7 = 12 10/7 - 5 6/7 = 7 4/7
в) 7 5/13 - 2 8/13 = 6 18/13 - 2 8/13 = 4 10/13
г) 5 7/19 - 4 16/19 = 4 26/19 - 4 16/19 = 10/19
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Пошаговое объяснение:
а) 4 8/11 - 1 9/11 = 3 19/11 - 1 9/11 = 3 10/11
б) 13 3/7 - 5 6/7 = 12 10/7 - 5 6/7 = 7 4/7
в) 7 5/13 - 2 8/13 = 6 18/13 - 2 8/13 = 4 10/13
г) 5 7/19 - 4 16/19 = 4 26/19 - 4 16/19 = 10/19