(number theory) A representation of a rational number as a sum of distinct unit fractions. / (number theory, rare) A unit fraction.

(arithmetic) A fraction whose numerator is 1 and whose denominator is a positive integer; for example, 1/2 or 1/7.

simple past tense and past participle of fraction

separated into fractions by fractionation; fractionated

plural of unit fraction

(mathematics, number theory) A compound numerical expression consisting of an integer plus a fraction whose numerator is a positive integer and whose denominator is a continued fraction (an integer plus a fraction), and so on, with finite or infinite recursion.

In a fractional manner

(chemistry) To separate (a mixture) into its individual constituents by exploiting differences in some chemical or physical property, such as boiling point, particle size, solubility etc.

A fraction typeset as one glyph. For example, ½ rather than 1/2.

(arithmetic) A proper or improper fraction the denominator of which is a power of ten and the decimal representation of which is a terminating decimal number.