Solution - Simplification or other simple results

Step  1  :

             6
 Simplify   ——
            11

Equation at the end of step  1  :

   3    8     6
  (— • ——) • ——
   4   15    11

Step  2  :

             8
 Simplify   ——
            15

Equation at the end of step  2  :

   3    8     6
  (— • ——) • ——
   4   15    11

Step  3  :

            3
 Simplify   —
            4

Equation at the end of step  3  :

   3    8     6
  (— • ——) • ——
   4   15    11

Step  4  :

Final result :

  12           
  —— = 0.21818 
  55