Rational numbers

rational number

noun Mathematics.
a number that can be expressed exactly by a ratio of two integers.

Origin:
1900–05

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Collins
World English Dictionary
rational number
 
n
any real number of the form a/b, where a and b are integers and b is not zero, as 7 or 7/3

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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