Solution - Simplification or other simple results

Step  1  :

            1
 Simplify   —
            7

Equation at the end of step  1  :

   8   1
  —— • —
  14   7

Step  2  :

            4
 Simplify   —
            7

Equation at the end of step  2  :

  4   1
  — • —
  7   7

Step  3  :

Final result :

   4           
  —— = 0.08163 
  49