Venn Diagram - Number System:

The expression is.

                              (Divide: )

Observe that the decimal (0.466666) of the number is repeating, so the

number is a rational number.

Observe the venn Diagram:

  The number is not a Natural number (N), not a Whole number (W), and not

        an Integer (Z).

  The number is a rational number (Q).            

  All rational numbers (Q) are real numbers (R).

The number belongs to Q and R.