а) (8-4+3/11) + 2 + 8/11 = 7 + 2 + 8/11 = 9 + 8/11 = 9 8/11.
б) 11 1/7 - (4 + 4/7 + 3 + 6/7) = 11 1/7 - (7 10/7) = 11 1/7 - 7 10/7 = 3 - 3/7 = 2 4/7.
а) (8-4+3/11) + 2 + 8/11 = 7 + 2 + 8/11 = 9 + 8/11 = 9 8/11.
б) 11 1/7 - (4 + 4/7 + 3 + 6/7) = 11 1/7 - (7 10/7) = 11 1/7 - 7 10/7 = 3 - 3/7 = 2 4/7.