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Determine if 21 ​ is rational or irrational and give a reason for your answer.

Determine if 21 ​ is rational or irrational and give a reason for your answer.
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Determine if 21 ​ is rational or irrational and give a reason for your answer.

User Bryan Dellinger
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1 Answer

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21 is a rational. A rational number is any integer, fraction, terminating decimal, or repeating decimal.
User Cvoinescu
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