Translation of "one-fifth" into Chinese

Approximately one fifth of humanity lives in countries experiencing significant violence, political conflict, insecurity and societal fragility.

约五分之一的人口所在的国家存在着严重暴力、政治冲突、不安全和社会脆弱问题。

I like shopping on Fifth Avenue in New York.

我喜欢在纽约第五大街购物。