rational number

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Related to rational number: real number, irrational number

rational number

A number capable of being expressed as an integer or a quotient of integers, excluding zero as a denominator.

rational number

(Mathematics) any real number of the form a/b, where a and b are integers and b is not zero, as 7 or 7/3

ra′tional num′ber

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

ra·tion·al 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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.rational number - an integer or a fraction
real, real number - any rational or irrational number
fraction - the quotient of two rational numbers
racionální číslo
nombre rationnel
racionalni broj
racionális szám
numero razionale
rationellt tal
References in periodicals archive ?
i) S(f) = S(g) = 0 and P(x + a) [member of] P for some rational number a;
Fractions are the first experience that students have with rational numbers in the elementary grades.
Contributing to students' low performance was their weak understanding of and computation with rational numbers.
Although a possibility, that there exists a rational number of BECS hierarchical levels, can be ruled out; methods are presented.
Proposition 7 Let x = p/q be a rational number such that gcd(p, q) = 1 and q [greater than or equal to] 4 then x [not member of] L.
As noted by Charalambous and Pitta-Pantazi (2007) the concept of part-whole partitioning takes up the bulk of the curriculum in younger grades, because it is critical to understanding other rational number concepts such as ratios, quotients, and measure.
Rational numbers and proportional reasoning: Toward a theoretical framework for research.
Is [square root of 2] a rational number, that is, expressible as a fraction?
to denote real numbers, positive real numbers, negative real numbers, rational numbers, integers, and positive integers, respectively.
Acongruent number, to a mathematician, is a positive integer that is equal to the area of a right triangle with three rational number sides.
Probably, the most extensive study of fractions was carried out under the Rational Number Project (e.