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rational number
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noun Mathematics.
a number that can be expressed exactly by a ratio of two integers.
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Origin of rational number
First recorded in 1900–05
Words nearby rational number
rationalism, rationality, rationalization, rationalize, rationally, rational number, rational operation, rationing, rations, ratio scale, ratio test
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use rational number in a sentence
British Dictionary definitions for rational number
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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for rational number
rational number
A number that can be expressed as an integer or a quotient of integers. For example, 2, -5, and 12 are rational numbers.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.