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It is rational. An irrational number is a number that you cannot define by a fraction or a decimal. Since you wrote it as a decimal, it is rational. The fact that it is negative does not matter.

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-2.75 is the ratio of 275 to -100, or of -275 to 100 ... nice and rational.

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13y ago
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Q: Is -2.75 an irrational or rational number?
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