Ответ:
Пошаговое объяснение:
1) 7 6/13 - 4 3/13 + 6 2/13 = 3 3/13 + 6 2 13= 9 5/13
б) 6 2/15 + 2 13/15 - 3 14/15 = 9 - 3 14/15 = 8 15/15 - 3 14/15 = 5 1/15
в) (2 15/19 + 4 8/19) - 5 15/19 = 7 4/19 - 5 15/19 = 6 23/19 - 5 15/19 = 1 8/19
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Ответ:
Пошаговое объяснение:
1) 7 6/13 - 4 3/13 + 6 2/13 = 3 3/13 + 6 2 13= 9 5/13
б) 6 2/15 + 2 13/15 - 3 14/15 = 9 - 3 14/15 = 8 15/15 - 3 14/15 = 5 1/15
в) (2 15/19 + 4 8/19) - 5 15/19 = 7 4/19 - 5 15/19 = 6 23/19 - 5 15/19 = 1 8/19