Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "2.4" was replaced by "(24/10)".

Step  1  :

            12
 Simplify   ——
            5 

Equation at the end of step  1  :

  12
  ——
  5 

Step  2  :

                 12
 Divide  36  by  ——
                 5 

Final result :

  15