-11/12 - 1 2/5 помогите :с
- 11/12 - 1 2/5 = -(11/12 + 7/5) = -( 55/60 + 84/60)= - 139/60 = - 2 19/60.
-11/12 - 1 2/5 = -11/12 - 7/5 = -55/60 - 84/60 = -139/60 = -2 19/60