Solution - Simplification or other simple results

Step  1  :

             8
 Simplify   ——
            15

Equation at the end of step  1  :

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

Step  2  :

            5
 Simplify   —
            6

Equation at the end of step  2  :

  5   -8
  — • ——
  6   15

Step  3  :

Final result :

  -4            
  —— = -0.44444 
  9