Solution - Simplification or other simple results

Step  1  :

            5
 Simplify   —
            6

Equation at the end of step  1  :

   8         5
  —— • (0 -  —)
  15         6

Step  2  :

             8
 Simplify   ——
            15

Equation at the end of step  2  :

   8   -5
  —— • ——
  15   6 

Step  3  :

Final result :

  -4            
  —— = -0.44444 
  9