Rational and Irrational Numbers

  • Matthias Beck
  • Ross Geoghegan
Part of the Undergraduate Texts in Mathematics book series (UTM, volume 0)


Before You Get Started. What is a fraction? Is it a real number? Are all real numbers fractions? Have you seen fractions in this book up to now? What real number should the fraction \(\frac{1}{2}\) be?


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Copyright information

© Matthias Beck and Ross Geoghegan 2010

Authors and Affiliations

  1. 1.Department of MathematicsSan Francisco State UniversitySan FranciscoUSA
  2. 2.Department of Mathematical SciencesBinghamton University State University of New YorkBinghamtonUSA

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