Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "d2"   was replaced by   "d^2". 

(2): "0.668" was replaced by "(668/1000)".

Step  1  :

            167
 Simplify   ———
            250

Equation at the end of step  1  :

               167
  ((d2) • f) • ———
               250

Step  2  :

Final result :

  167d2f
  ——————
   250