-72+3 5/8+(-0,75);
Помогите

-72+3 5/8+(-0,75) = -72+29/8-0,75 = -72+29/8-3/4 = -72+29/8-6/8 = -72+23/8 = (-576+23)/8 = -553/8 = -69 1/8