а) 1/3 + 1/6 + 1/18 = 6/18 + 3/18 + 1/18 = 10/18 = 5/9
б) 1/2 + 1/5 + 3/7 = 7/14 + 2/14 + 6/14 = 15/14 = 1 1/14
в) 1/2 + 1/3 + 3/5 = 15/30 + 10/30 + 18/30 = 43/30 = 1 13/30
а) 1/3 + 1/6 + 1/18 = 6/18 + 3/18 + 1/18 = 10/18 = 5/9
б) 1/2 + 1/5 + 3/7 = 7/14 + 2/14 + 6/14 = 15/14 = 1 1/14
в) 1/2 + 1/3 + 3/5 = 15/30 + 10/30 + 18/30 = 43/30 = 1 13/30