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How can a number be determined as rational or irrational?

Updated: 8/20/2019
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10y ago

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A number is a rational number when it can be expressed as a fraction otherwise it is an irrational number

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A fraction, in this context, being a ratio of two integers (not pi/2, for example).

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10y ago
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Q: How can a number be determined as rational or irrational?
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