Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "0.0000672" was replaced by "(0000672/10000000)".

Step  1  :

              21  
 Simplify   ——————
            312500

Final result :

    21             
  —————— = 0.00007 
  312500