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The number 5.123 is rational. A rational number is any number that can be expressed as a fraction where the numerator and denominator are integers and the denominator is not zero. In this case, 5.123 can be expressed as the fraction 5123/1000, where both the numerator (5123) and the denominator (1000) are integers.
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Earn +20 ptsQ: Is 5.123 rational or irrational
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Is a rational plus an irrational equals a rational?
No. A rational plus an irrational is always an irrational.
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The product of a rational and irrational number can be rational if the rational is 0. Otherwise it is always irrational.
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