A proper fraction is a fraction 
with 
such that 
. A fraction 
is called an improper
fraction.
Proper Fraction
See also
Common Fraction, Fraction, Mixed Fraction, Improper Fraction, Irreducible Fraction, Reduced Fraction, Reducible FractionExplore with Wolfram|Alpha
References
Derbyshire, J. Prime Obsession: Bernhard Riemann and the Greatest Unsolved Problem in Mathematics. New York: Penguin, p. 171, 2004.Referenced on Wolfram|Alpha
Proper FractionCite this as:
Weisstein, Eric W. "Proper Fraction." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/ProperFraction.html