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A rational number is a number that can be expressed as a ratio of two integers. In this case, 2.645 can be expressed as 2645/1000, which simplifies to 529/200 when reduced to its lowest terms. Since 529 and 200 are both integers and the denominator is not zero, 2.645 is a rational number.

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Rational

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7y ago
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Q: Is 2.645 rational or irrational
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