Definition of numerator in US English: numerator
noun The number above the line in a common fraction showing how many of the parts indicated by the denominator are taken, for example, 2 in 2/3.
Example sentences
‘To convert a fraction to a percentage, divide the numerator by the denominator.’ ‘From this we observe that the rows of numerators and denominators of the terms in the Stern-Brocot tree are computed independently of each other.’ ‘If you calculate the divergence for different species of plants, you find that both the numerator and the denominator are usually Fibonacci numbers.’ ‘In other words, a number is rational if we can write it as a fraction where the numerator and denominator are both integers.’ ‘We stop when the fraction has a numerator or a denominator of 1.’ Pronunciation numerator /ˈn(y)o͞oməˌrādər/ /ˈn(j)uməˌreɪdər/