one-fifth

== English == === Alternative forms === one fifth === Noun === one-fifth (uncountable) One of five equal parts (1/5, ⅕, 0.2). === Further reading === “one-fifth”, in OneLook Dictionary Search. "one-fifth" in WordNet 3.1, Princeton University, 2011. “one-fifth of, one fifth of”, in Google Books Ngram Viewer.