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The fraction 12/18 can be simplified to 2/3 by dividing both the numerator and denominator by their greatest common divisor, which is 6. Since the fraction 2/3 can be expressed as a ratio of two integers and can be written in the form a/b where a and b are integers and b is not equal to 0, it is considered a rational number. Rational numbers are numbers that can be expressed as a ratio of two integers.
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Earn +20 ptsQ: Is 12 over 18 a rational or irrational number?
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Continue Learning about Basic Math
Is 3 over 12 a rational or irrational number?
3/12 = 1/4 = 0.25, which terminates, so it is a rational number.
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Integers are rational. Also, terminating decimal numbers, as well as repeating decimals (such as 3.12121212..., where "12" repeats over and over) are rational.
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