![\"venn](\"http://www.mathskey.com/userfiles/image/Library/Algebra%202/venn_diagram_number_properties%281%29.gif\")
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
Venn Diagram - Number System:
The number is 31.
\§ Observe the Venn diagram:
\§ The number 31 is a natural number (N).
\ § The number 31 is a rational number (Q). (![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ae99bb0ef6cd91120b47e5d9db8d1186.png\")
)
§ The sets of Whole numbers (W), integers (Z), and natural numbers(N)
\are subsets of rational number (Q).
\§ All rational numbers (Q) are real numbers (R)
\![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The number 31 belongs to N, W, Z, Q, and R.