Solution - Simplification or other simple results

Step  1  :

             5
 Simplify   ——
            13

Equation at the end of step  1  :

  6    5
  — • ——
  7   13

Step  2  :

            6
 Simplify   —
            7

Equation at the end of step  2  :

  6    5
  — • ——
  7   13

Step  3  :

Final result :

  30           
  —— = 0.32967 
  91