2-(6 7/8-7 1/3):3/4 РЕШИТЕ ПОЖАЛУЙСТА!
2-(6 7/8-7 1/3):3/4 = 2 11/12 6 7/8-7 1/3 = 6 21/24 - 7 8/24 = 165/24 - 176/24 = - 11/24 - 11/24:3/4 = -11/24*4/3 = - 11/12 2 - (-11/`12) = 2 + 11/12= 2 11/12