Question

Выполните действия (3/7*33/40+5/6)/1 11/12= очень надо помогите!!!!!!!!!!!!!

Answer 1

(3/7*33/40+5/6)/(1 11/12)=((3*33)/(7*40)+5/6)/(23/12)=(99/280+5/6)/(23/12)=((99*3)/(280*3)+(5*140)/(6*140))/(23/12)=(297/840+700/840)/(23/12)=((297+700)/840)/(23/12)=(997/840)/(23/12)=(997/840)*(12/23)=(997*12)/(840*23)=(997)/(1610)