Question

[(13-3•4)3-(18-4•5) 3] :3=

Answer 1

[(13 - 3 . 4) 3 - (18 - 4 . 5) 3] : 3

[(13 - 12 ) 3 - (18 - 20) 3] : 3

[(1) 3 - (-2) 3] : 3

[3 + 6] : 3
     
9 : 3
       
   3

Answer 2

[(13-12)3-(18-20)3]:3
      [13-(-2) 3]:3
         [11-3]:3
           8:3 
         2,333...