Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "0.8" was replaced by "(8/10)".

Step  1  :

            4
 Simplify   —
            5

Equation at the end of step  1  :

       4
  0 -  —
       5

Step  2  :

                 4
 Divide  36  by  —
                 5

Equation at the end of step  2  :

  0 -  45

Step  3  :

Final result :

  -45