Solution - Simplification or other simple results

Step  1  :

            1
 Simplify   —
            2

Equation at the end of step  1  :

   4   1
  —— • —
  52   2

Step  2  :

             1
 Simplify   ——
            13

Equation at the end of step  2  :

   1   1
  —— • —
  13   2

Step  3  :

Final result :

   1           
  —— = 0.03846 
  26