Question

[2intregi1supra3:0,(3)+1,1:(1intreg5supra6-1,(2)))]×5supra11

Answer 1

   [2 si 1/3 : 0,(3) + 1,1 : (1 si 5/6 - 1,(2)] x 5/11 = 
= {(6/3+1/3) : 3/9 + (1 si 1/10) : [(6/6+5/6) - (12-1)/9]} x 5/11 = 
= [7/3 : 1/3 + 11/10 : (11/6 - 11/9)] x 5/11 =
= [7/3 x 3/1 + 11/10 : (33/18 - 22/18)] x 5/11 =
= (7 + 11/10 : 11/18) x 5/11 = 
= (7+ 11/10 x 18/11) x 5/11 =
= (7+9/5) x 5/11 =
= (35/5 + 9/5) x 5/11 =
= 44/5 x 5/11 =
= 4