a fraction having the numerator less, or lower in degree, than the denominator.
Origin of proper fraction
First recorded in 1665–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a fraction in which the numerator has a lower absolute value than the denominator, as 1/2 or x /(3 + x ²)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
A fraction in which the numerator is less than the denominator, such as 12. Compare improper fraction.
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