A part of a whole, especially a comparatively small part.

(arithmetic) A ratio of two numbers (numerator and denominator), usually written one above the other and separated by a horizontal bar called the vinculum or, alternatively, in sequence on the same line and separated by a solidus (diagonal bar).

(chemistry) A component of a mixture, separated by fractionation.

(Christianity) In a eucharistic service, the breaking of the host.

A small amount.

To divide or break into fractions.