Solution - Simplification or other simple results

Step  1  :

            7
 Simplify   —
            9

Equation at the end of step  1  :

  4   7
  — • —
  9   9

Step  2  :

            4
 Simplify   —
            9

Equation at the end of step  2  :

  4   7
  — • —
  9   9

Step  3  :

Final result :

  28           
  —— = 0.34568 
  81