Solution - Simplification or other simple results

Step  1  :

             9
 Simplify   ——
            10

Equation at the end of step  1  :

   2   14           9
  (— • ——) • (0 -  ——)
   9   15          10

Step  2  :

            14
 Simplify   ——
            15

Equation at the end of step  2  :

   2   14    -9
  (— • ——) • ——
   9   15    10

Step  3  :

            2
 Simplify   —
            9

Equation at the end of step  3  :

   2   14    -9
  (— • ——) • ——
   9   15    10

Step  4  :

Final result :

  -14            
  ——— = -0.18667 
  75