Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "3.75" was replaced by "(375/100)".

Step  1  :

            15
 Simplify   ——
            4 

Equation at the end of step  1  :

   15
  (—— • c) • m
   4 

Step  2  :

Final result :

  15cm
  ————
   4