Solution - Simplification or other simple results

Step  1  :

            1
 Simplify   —
            4

Equation at the end of step  1  :

   4   1
  —— • —
  52   4

Step  2  :

             1
 Simplify   ——
            13

Equation at the end of step  2  :

   1   1
  —— • —
  13   4

Step  3  :

Final result :

   1           
  —— = 0.01923 
  52