Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "f2"   was replaced by   "f^2". 

Step  1  :

            373
 Simplify   ———
            420

Equation at the end of step  1  :

               373
  ((f2) • d) • ———
               420

Step  2  :

Final result :

  373f2d
  ——————
   420