Solution - Simplification or other simple results

Step  1  :

            2
 Simplify   —
            7

Equation at the end of step  1  :

  3   2
  — • —
  7   7

Step  2  :

            3
 Simplify   —
            7

Equation at the end of step  2  :

  3   2
  — • —
  7   7

Step  3  :

Final result :

   6           
  —— = 0.12245 
  49