Solution - Simplification or other simple results

Step  1  :

             5
 Simplify   ——
            12

Equation at the end of step  1  :

   5
  —— ÷ 3 ÷ 4
  12

Step  2  :

          5      
 Divide  ——  by  3
         12      

Equation at the end of step  2  :

   5
  —— ÷ 4
  36

Step  3  :

          5      
 Divide  ——  by  4
         36      

Final result :

   5            
  ——— = 0.03472 
  144