proper fraction

noun Mathematics.
a fraction having the numerator less, or lower in degree, than the denominator.

1665–75 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
proper fraction
a fraction in which the numerator has a lower absolute value than the denominator, as ½ or x/(3 + x²)

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
proper fraction   (prŏp'ər)  Pronunciation Key 
A fraction in which the numerator is less than the denominator, such as 1/2 . Compare improper fraction.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Understand that a mixed number is a fraction that has two parts: a whole number and a proper fraction.
The setting of the proper fraction of sludge removal for return to the aeration tanks as seeding.
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