- 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. 2018
- a fraction in which the numerator has a lower absolute value than the denominator, as 1/2 or x /(3 + x ²)
- A fraction in which the numerator is less than the denominator, such as 12. Compare improper fraction.
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