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): "0.625" was replaced by "(625/1000)".

Step  1  :

            5
 Simplify   —
            8

Equation at the end of step  1  :

               5
  ((d2) • f) • —
               8

Step  2  :

Final result :

  5d2f
  ————
   8