5/1/6+3/1/18= 3/5/6-1/4/5= 6/1/2-2/4/5= Сложение смешанных чисел Вычитание смешанных чисел

5(1/6) + 3(1/18) = 31/6 + 55/18 = 93/18 + 55/18 = 148/18 = 8(2/9). 3(5/6) – 1(4/5) = 23/6 – 9/5 = 115/30 – 54/30 = 61/30 = 2(1/30). 6(1/2) – 2(4/5) = 13/2 – 14/5 = 62/10 – 28/10 = 37/10 = 3(7/10).