(3.42-2⅝):1|50 помогите плизз

Question

(3.42-2⅝):1|50 помогите плизз

Answer 1

5-8*(7/6-2/3)*5/6= 5-(28/3-16/3)*5/6= 5-12/3*5/6 =5-10/3= 15/3-10/3=5/3= 1 2/3