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A rational number is one that can be represented as a fraction with whole numbers for the top (numerator) and bottom (denominator) numbers.

-2.9 = -29/10 = -29/10

So -2.9 is a rational number.

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Wiki User

13y ago
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Wiki User

13y ago

Yes - expressed as a mixed number, it is equal to 2 9/10 or two and nine tenths.

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Wiki User

12y ago

Yes.

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Wiki User

13y ago

Yes.

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Jesus Juarez

Lvl 2
3y ago

Yes

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Q: Is 2.9 a rational number
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