Вычислите : а) 2/3-3/4 б) 4/5-5/6 в) -3/8-1/2 г) -5/6-3/4

Question

Вычислите : а) 2/3-3/4 б) 4/5-5/6 в) -3/8-1/2 г) -5/6-3/4

Answer 1

2/3 - 3/4 = 8/12 - 9/12 = -1/12.
4/5 - 5/6 = 24/30 - 25/30 = -1/30.
-3/8 - 1/2 = -3/8 - 4/8 = -7/8.
-5/6 - 3/4 = -10/12 - 9/12 = -19/12 = -1 7/12.

Answer 2

А) = (8-9)/12= -1/12
б) = (24-25)/30 = -1/30
в) = (-3-4)/8= -7/8
г) = (-10-9)/12= -19/12