The expression is .

Observe that the decimal of the number is repeating, so the number

is a rational number.

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• Observe the Venn diagram:
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• The number is not a Natural number (N), not a Whole number (W), and not an Integer (Z).
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• The number is a rational number (Q).
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• All rational numbers (Q) are real numbers (R). \ \
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The number belongs to Q and R.