A fraction where the numerator is greater than or equal to the denominator, representing a value greater than or equal to one whole. Examples include 7/4, 9/5, or 8/8.
From Latin 'improperus' meaning 'not fitting' and 'fractio' meaning 'a breaking'. The term emerged in medieval mathematics when scholars needed to distinguish fractions representing more than one whole unit from those representing parts of a whole.
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