### Definition of Rational number

1. Noun. An integer or a fraction.

Exact synonyms: Rational
Generic synonyms: Real, Real Number
Specialized synonyms: Fraction

### Definition of Rational number

1. Noun. (mathematics) A real number that can be expressed as the ratio of two integers. ¹

¹ Source: wiktionary.com

### Lexicographical Neighbors of Rational Number

 ratioedratiometricrationration cardration outrationablerationalrational-numberrational drug designrational egoism rational egoistrational formularational functionrational functionsrational motiverational number (current term)rational numbersrational surfacerational therapyrationale rationalesrationalisationrationalisationsrationaliserationalise awayrationalisedrationalisesrationalisingrationalismrationalisms

### Literary usage of Rational number

Below you will find example usage of this term as found in modern and/or classical literature:

1. Introduction to the Theory of Fourier's Series and Integrals by Horatio Scott Carslaw (1921)
"An irrational number is never equal to a rational number. They are always different or unequal. Next, in § 5, we have seen that the irrational number given ..."

2. The Theory of Functions of a Real Variable and the Theory of Fourier's Series by Ernest William Hobson (1907)
"In case either RI has a greatest number x, or R* has a least number x, the section is said to define a real number corresponding to the rational number x. ..."

3. An Introduction to the Theory of Infinite Series by Thomas John I'Anson Bromwich (1908)
"For any rational number r which does not belong to either class must lie between ... Suppose now that s is a second rational number which belongs to neither ..."

4. Functions of a Complex Variable by Edgar Jerome Townsend (1915)
"We have, for example, a partition if we select any rational number a and put into one set AI all those rational numbers that are equal to or greater than a ..."

5. Functions of a Complex Variable by Edgar Jerome Townsend (1915)
"We have, for example, a partition if we select any rational number a and put into one set A,, all those rational numbers that are equal to or greater than a ..."

6. Introduction to Infinitesimal Analysis: Functions of One Real Variable by Oswald Veblen, Nels Johann Lennes (1907)
"a and b are any two distinct numbers, then there exists a rational number c such that a<c and c<b, or b<c and c<a. Proof.—Suppose a<b. ..."

7. The Teaching of Mathematics in the Elementary and the Secondary School by Jacob William Albert Young (1906)
"Two numbers so defined are said to be equal, if at most one rational number is differently classified in the two Definition definitions. of Equal Thus 5 may ..."