![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The expression is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ace9d42c84155f98be8a34e8310a4ea3.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f60d81db5aea181e47a33f596f4bb6dd.png\")
(Divide: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f60d81db5aea181e47a33f596f4bb6dd.png\")
)
Observe that the decimal (0.66666) 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),
\![\"\"](\"/userfiles/image/realnumber.jpg\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The number . belongs to Q and R.