![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The expression is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d1fe7e4e5551b651f0057d117deb66f8.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=dcb07d14c306b1d1e71f3f0d1764d2c3.png\")
(Divide, .)
Observe that the decimal (0.66666) of the number is repeating,
\so the number ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d1fe7e4e5551b651f0057d117deb66f8.png\")
. 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.