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rational number
noun
, Mathematics.
- a number that can be expressed exactly by a ratio of two integers.
rational number
noun
- any real number of the form a / b , where a and b are integers and b is not zero, as 7 or 7/3
rational number
- A number that can be expressed as an integer or a quotient of integers. For example, 2, −5, and 1 2 are rational numbers.
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Word History and Origins
Origin of rational number1
First recorded in 1900–05
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Example Sentences
If you zoom in on a sequence of rational numbers, you might approach a number that itself is not rational.
From Quanta Magazine
Similarly, any rational real number is distinct from the corresponding rational number.
From Project Gutenberg
When d is a given rational number, the set constitutes a subgroup which is conjugate to the group of multiplications.
From Project Gutenberg
The subgroups, each of which leaves a single rational number unchanged, therefore form a single conjugate set.
From Project Gutenberg
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