Solution - Simplification or other simple results

Step  1  :

            25
 Simplify   ——
            64

Equation at the end of step  1  :

   8   25
  —— • ——
  15   64

Step  2  :

             8
 Simplify   ——
            15

Equation at the end of step  2  :

   8   25
  —— • ——
  15   64

Step  3  :

Final result :

   5           
  —— = 0.20833 
  24