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Why is 0.18 a rational number?

Updated: 4/28/2022
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βˆ™ 11y ago

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Any terminating or non-terminating decimal digit is rational.

The easiest way to look at this is, writing the number in the fractional from.

0.18 can be written as 18/100.

Now, by the definition of a rational from, 18/100 is of the standard "p/q" from where q is not equal to 0 (q=100 here).

Thus, it is a rational number.

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βˆ™ 11y ago
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Q: Why is 0.18 a rational number?
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