Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "0.8" was replaced by "(8/10)".

Step  1  :

            4
 Simplify   —
            5

Equation at the end of step  1  :

  4
  — ÷ 72
  5

Step  2  :

         4      
 Divide  —  by  72
         5      

Final result :

   1           
  —— = 0.01111 
  90