2/3+1/6=5/6
-1/3+2/5=1/15
-7/9+1/6=-11/18
Пошаговое объяснение:
а) 2/3 + 1/6 = 4/6 + 1/6 = 5/6
б) -1/3 + 2/5 = -5/15 + 6/15 = 1/15
в) -7/9 + 1/6 = -28/36 + 6/36 = -22/36 = -11/18
2/3+1/6=5/6
-1/3+2/5=1/15
-7/9+1/6=-11/18
Пошаговое объяснение:
а) 2/3 + 1/6 = 4/6 + 1/6 = 5/6
б) -1/3 + 2/5 = -5/15 + 6/15 = 1/15
в) -7/9 + 1/6 = -28/36 + 6/36 = -22/36 = -11/18