Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "0.9" was replaced by "(9/10)". 2 more similar replacement(s)

Step  1  :

             9
 Simplify   ——
            10

Equation at the end of step  1  :

  18    9
  —— • ——
  10   10

Step  2  :

            9
 Simplify   —
            5

Equation at the end of step  2  :

  9    9
  — • ——
  5   10

Step  3  :

Final result :

  81           
  —— = 1.62000 
  50