Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "4.5" was replaced by "(45/10)".

Step  1  :

            9
 Simplify   —
            2

Equation at the end of step  1  :

  9
  — ÷ 10
  2

Step  2  :

         9      
 Divide  —  by  10
         2      

Final result :

   9           
  —— = 0.45000 
  20