Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "2.25" was replaced by "(225/100)".

Step  1  :

            9
 Simplify   —
            4

Equation at the end of step  1  :

  9
  —
  4

Step  2  :

                  9
 Divide  144  by  —
                  4

Final result :

  64