Solution - Simplification or other simple results

Step  1  :

            1
 Simplify   —
            9

Equation at the end of step  1  :

  9         1
  — • (0 -  —)
  5         9

Step  2  :

            9
 Simplify   —
            5

Equation at the end of step  2  :

  9   -1
  — • ——
  5   9 

Step  3  :

Final result :

  -1            
  —— = -0.20000 
  5