а) 1 = 2/2 т.е 2/2 - 1/2 = 1/2
б) 1 = 5/5 т.е 5/5 - 2/5 = 3/5
в) 1 = 3/3 т.е 3/3 - 1/3 = 2/3
г) 1 = 10/10 т.е 10/10 - 3/10 = 7/10
а) 1 = 2/2 т.е 2/2 - 1/2 = 1/2
б) 1 = 5/5 т.е 5/5 - 2/5 = 3/5
в) 1 = 3/3 т.е 3/3 - 1/3 = 2/3
г) 1 = 10/10 т.е 10/10 - 3/10 = 7/10