Öğrencilerin üçte ikisi toplantıya geldi.
- Two-thirds of the students came to the meeting.
Bu okulun öğrencilerinin üçte ikisi erkektir.
- Two-thirds of the students of this school are boys.
... oxygen-- it's two-thirds oxygen, one-third fuel-- ...
... two-thirds of the history of the universe has already passed. ...