C = 1 целая 1/2 = 1,5
Пошаговое объяснение:
1/2 + 1/3 = 3/6 + 2/6 = 5/6 = A
1/3 + 1/4 = 4/12 + 3/12 = 7/12 = B
5/6 + 7/12 = 11/12 + 7/12 = 18/12 = 1 целая 6/12 = 1 целая 1/2 = 1,5 = C
А=5/6
В=7/12
С=5/6+7/12=14/12
С=14/12
C = 1 целая 1/2 = 1,5
Пошаговое объяснение:
1/2 + 1/3 = 3/6 + 2/6 = 5/6 = A
1/3 + 1/4 = 4/12 + 3/12 = 7/12 = B
5/6 + 7/12 = 11/12 + 7/12 = 18/12 = 1 целая 6/12 = 1 целая 1/2 = 1,5 = C
А=5/6
В=7/12
С=5/6+7/12=14/12
С=14/12