Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "7.5" was replaced by "(75/10)".

Step  1  :

            15
 Simplify   ——
            2 

Equation at the end of step  1  :

  15
  ——
  2 

Step  2  :

                15
 Divide  5  by  ——
                2 

Final result :

  2           
  — = 0.66667 
  3