Помогите пожалуйста))
(3/15-2 7/25):1 2/25 +1 4/15= (15/75-2 21/75): 27/25 +1 4/15= -2 6/75 : 27/25 +1 4/15= -156/75 * 25/27 +1 4/15= -52/3*9 + 1 4/15= -52/27 + 1 4/15= -1 25/27 + 1 4/15= -1 125/135 + 1 36/135= -89/135