Solution - Simplification or other simple results

Step  1  :

            5
 Simplify   —
            1

Equation at the end of step  1  :

   9   9     5
  (— • —) • ——
   6   6    81

Step  2  :

             5
 Simplify   ——
            81

Equation at the end of step  2  :

   9   9     5
  (— • —) • ——
   6   6    81

Step  3  :

            3
 Simplify   —
            2

Equation at the end of step  3  :

   9   3     5
  (— • —) • ——
   6   2    81

Step  4  :

            3
 Simplify   —
            2

Equation at the end of step  4  :

   3   3     5
  (— • —) • ——
   2   2    81

Step  5  :

Final result :

   5           
  —— = 0.13889 
  36