rational number

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Introduction References & Edit History Related Topics

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Four year old boy with grandfather and father lighting Hanukkah menorah. Photo taken on: December 21st, 2009

Which Is Correct: Hanukkah or Chanukah?

Srinivasa Ramanujan, Indian mathematician and autodidact.

6 Interesting Facts about Srinivasa Ramanujan

World Data Locator Map: Australia

Is Australia an Island?

The Battle of Gettysburg, July 1-3, 1863. (Civil War, Pennsylvania)

9 Worst Generals in History

The Prado Museum facade at the Diego Velaszquez memorial. Established in 1819, the museum is considered the best collection of Spanish art and one of the world's finest collections of European art. Madrid, Spain

20 Paintings You Have to Visit at the Museo del Prado in Madrid

Saint Lucia Day. Young girl wears Lucia crown (tinsel halo) with candles. Holds Saint Lucia Day currant laced saffron buns (lussekatter or Lucia's cats). Observed December 13 honor virgin martyr Santa Lucia (St. Lucy). Luciadagen, Christmas, Sweden

7 Winter Solstice Celebrations From Around the World

Entrants falling and tumbling over while chasing the cheese at the 2016 'Cheese Rolling' held at Cooper's Hill, in the Cotswolds, Brockworth England

7 of the World’s Most Dangerous Festivals

rational number: References & Edit History

More Articles On This Topic

Assorted References

major reference
- In arithmetic: Theory of divisors
countability
- In mathematics: Cantor
Dedekind cut
- In Dedekind cut
field properties
- In modern algebra: Fields
foundations of mathematics
- In foundations of mathematics: Arithmetic or geometry
number systems
- In analysis: Number systems
numbers
- In number
real numbers
- In real number
- In analysis: Properties of the real numbers
ultraproducts
- In metalogic: Ultrafilters, ultraproducts, and ultrapowers

Article Contributors

Primary Contributors

William L. Hosch
William L. Hosch was an editor at Encyclopædia Britannica.

Other Encyclopedia Britannica Contributors

Article History

Type	Description	Contributor	Date
	Add new Web site: Education Resources Information Center - Rational number understanding: The big picture, not the essence (PDF).	Gloria Lotha	Dec 10, 2024
	Add new Web site: CORE - A simple canonical representation of rational numbers.	Yamini Chauhan	Aug 21, 2024
	Add new Web site: University of California, Santa Barbara - Department of Mathematics - Rational Numbers.	Aakanksha Gaur	Jun 25, 2024
	Add new Web site: University of Houston - Department of Mathematics - Irrational Numbers.	Aakanksha Gaur	May 02, 2024
	Add new Web site: Massachusetts Institute of Technology - Department of Mathematics - What are Numbers? The Rational Numbers.	Gloria Lotha	Apr 11, 2024
	Add new Web site: Washington University in St. Louis - Department of Mathematics - The Rational Numbers.	Gloria Lotha	Jan 05, 2024
	Add new Web site: The University of Utah - Department of Mathematics - The Integers and Rational Numbers.	Gloria Lotha	Nov 09, 2023
	Add new Web site: University of Toronto - A new representation of the rational numbers for fast easy arithmetic.	Aakanksha Gaur	May 23, 2023
	Add new Web site: Story of Mathematics - Rational Numbers\|Definition and Meaning.	Gloria Lotha	Mar 13, 2023
	Add new Web site: Mathematics LibreTexts - The Rational Numbers.	Emily Rodriguez	Nov 05, 2022
	Add new Web site: Kean University - The Rational Numbers.	Thinley Kalsang Bhutia	May 17, 2018
	Add new Web site: University of Pennsylvania - Department of Mathematics - Recounting the rationals.	Thinley Kalsang Bhutia	May 17, 2018
	New article added.	William L. Hosch	Apr 08, 2009