Solution - Simplification or other simple results

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "^-1" was replaced by "^(-1)".

Step  1  :

 1.1     6 = 2•3

(6)^-1 = (2•3)^(-1) = (2)^(-1) • (3)^(-1)

Final result :

    1             
  ————— = 0.16667 
  (2•3)