Word.ws English Dictionary

rational numbers

rational numbers is the plural of rational number.

Meaning of rational number

Noun

rational number (plural rational numbers)

  1. A number that can be expressed as the ratio of two integers.

Noun

rational numbers

  1. The set of numbers that can be expressed as a ratio of integers, often denoted with the bold letter Q, or the blackboard bold letter ℚ.
    • Elementary number theory is concerned with the arithmetic properties of the ring of integers, ℤ, and its field of fractions, the rational numbers, ℚ.2002, Michael Rosen, Number Theory in Function Fields, page vii
    • However, if our ring of interest is the rational numbers ℚ, then we see that[…].2004, Ronald S. Irving, Integers, Polynomials, and Rings: A Course in Algebra, page 127

Questions about rational numbers

What does rational numbers mean?
Rational numbers means the set of numbers that can be expressed as a ratio of integers, often denoted with the bold letter Q, or the blackboard bold letter ℚ.
What is rational numbers the plural of?
Rational numbers is the plural of rational number.
What part of speech is rational numbers?
Rational numbers is a noun.

Words near rational numbers in the dictionary

  1. rational function
  2. rational functions
  3. rational horizon
  4. rational horizons
  5. rational number
  6. rational numbers
  7. rational root theorem
  8. rational selfishness
  9. rational symptom
  10. rational symptoms
  11. rationale

Source and license

Adapted from Wiktionary: rational numbers (page history and authors); rational number (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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