Venn diagram number properties

The expression is .

                                   (Divide:)

Observe the Venn diagram:

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• The number 8 is a natural number (N).
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• The sets of natural numbers (N), whole numbers (W) and integers (Z)
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           are subsets of rational number (Q).

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• All rational numbers (Q) are real numbers (R).  
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The number belongs to N, W, Z, Q, and R.