One-third in a sentence as a noun

He then devotes one-third of his letter to joking about Hitchens questioning the use of the word "obscene".

Its population of 126 million, which has been shrinking for the past decade, is projected to plunge a further one-third by 2060.

In fact, the exposure of domestic [Cypriot] banks to Greece amounted to 28 billion, or one-third of total assets and 170% of GDP.

So in theory there are lots of vegetarians also who come in at half or one-third their daily requirement, and never notice anything.

Because there is so little risk of getting caught, one-third of all employers who have been found guilty of violating wage and hour laws continue to do it.[0]Hourly labor laws are ridiculous.

The effects are remarkable: Almost overnight, and for years into the future, the number of severe diarrhea cases falls by one-half, and the number of malaria cases falls by one-third.

The same applies to people from Okinawa in Japan, where around half of supercentenarians had a history of smoking and one-third were regular alcohol drinkers.

That's less than one-third of the rate for high-school dropouts -- and it's exactly as Tyson said it was....These aren't exactly comparable, since BLS does not release seasonally adjusted figures for those with advanced degrees.

One-third definitions

noun

one of three equal parts of a divisible whole; "it contains approximately a third of the minimum daily requirement"

See also: third tierce