Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "0.0000421" was replaced by "(0000421/10000000)".

Step  1  :

               421  
 Simplify   ————————
            10000000

Final result :

     421             
  ———————— = 0.00004 
  10000000