Solution - Simplification or other simple results

Step  1  :

            13
 Simplify   ——
            19

Equation at the end of step  1  :

  14   13
  —— • ——
  20   19

Step  2  :

             7
 Simplify   ——
            10

Equation at the end of step  2  :

   7   13
  —— • ——
  10   19

Step  3  :

Final result :

   91           
  ——— = 0.47895 
  190