Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "40.5" was replaced by "(405/10)".

Step  1  :

            81
 Simplify   ——
            2 

Equation at the end of step  1  :

  81
  ——
  2 

Step  2  :

                 81
 Divide  18  by  ——
                 2 

Final result :

  4           
  — = 0.44444 
  9