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No. If a number is irrational, it continues endlessly without a pattern. Since 2.5 stops at 5, it is rational; but if it were, say, 2.573583..., it would be irrational. Also, it can be written as the fraction 25/10, or 5/2.

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No. 25 is an integer. Integers are rational

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16y ago
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No

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12y ago
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Q: Is 2.5 an irrational number
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