One fourth as a fraction representing one part of four equal parts.

एक चौथाई

English Usage: He ate one fourth of the pizza.

Hindi Usage: उसने पिज्ज़ा का एक चौथाई खा लिया।

Describing a singular or one part of something.

एक

English Usage: One fourth of the class was absent today.

Hindi Usage: क्लास का एक चौथाई आज अनुपस्थित था।