-72+3 5/8+(-0,75); Помогите

Question

-72+3 5/8+(-0,75);
Помогите

Answer 1

-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