Fraction (disambiguation)

A fraction is one or more equal parts of something.

Fraction may also refer to:
 * Fraction (chemistry), a quantity of a substance collected by fractionation
 * Fraction (floating point number), an (ambiguous) term sometimes used to specify a part of a floating point number
 * Fraction (politics), a subgroup within a parliamentary party
 * Fraction (radiation therapy), one unit of treatment of the total radiation dose of radiation therapy that is split into multiple treatment sessions
 * Fraction (religion), the ceremonial act of breaking the bread during Christian Communion

People with the surname

 * Matt Fraction, a comic book author