\begin{ccRefConcept}{Fraction} \ccDefinition A type is considered as a \ccc{Fraction}, if there is a reasonable way to decompose it into a numerator and denominator. In this case the relevant functionality for decomposing and re-composing as well as the numerator and denominator type are provided by \ccc{CGAL::Fraction_traits}. \ccSeeAlso \ccRefIdfierPage{FractionTraits}\\ \ccRefIdfierPage{CGAL::Fraction_traits}\\ \end{ccRefConcept}