2.262 fractions as pronouns

When it is clear to your listener or reader who or what you are referring to, either because of the context or because you and your listener or reader know what is meant, you can use fractions as pronouns without the quantifying 'of' and noun group after them.

• Of the people who work here, half are French and half are English.
• Two thirds were sterilized.
• One fifth are appointed by the Regional Health Authority.