- a number usually expressed in the form a/b.
- a ratio of algebraic quantities similarly expressed.
verb (used with or without object)
Words nearby fraction
Origin of fraction
SYNONYMS FOR fraction
OTHER WORDS FROM fractionsub·frac·tion, noun
British Dictionary definitions for subfraction
- a ratio of two expressions or numbers other than zero
- any rational number that is not an integer
Word Origin for fraction
Medicine definitions for subfraction
Science definitions for subfraction
Culture definitions for subfraction
A mathematical expression representing the division of one whole number by another. Usually written as two numbers separated by a horizontal or diagonal line, fractions are also used to indicate a part of a whole number or a ratio between two numbers. Fractions may have a value of less than one, as with 1/2, or equal to one, as with 2/2, or more than one, as with 3/2. The top number of a fraction is the numerator and the bottom number is the denominator.