Noun
(grammar) A word that expresses one or more of a specific number of parts of a whole.
Synonyms: fractional, fractional numeral, partitive numeral
In English, most ordinal numbers double as fractional numbers — "third", "fourth", and so on — with the exception of "second", whose corresponding fractional number is "half".
(arithmetic) A fraction, such as
1
2
{\displaystyle \textstyle {\frac {1}{2}}}
or
3
5
{\displaystyle \textstyle {\frac {3}{5}}}
.
Synonym: fraction