If these tendencies continue, those aged 65 or more will account for a quarter of the population within 30 years

I have spent more than two-thirds, if not all, of the money for a new car

Do you know the reason why two-thirds of the students did not attend the student meeting

Four-fifths of all the members were against the plan

The house isn't huge and it's on about two-thirds of an acre, and when we first bought it I spent several hours every week getting the lawnmower fixed and cutting the lawn, in that order

The population of that country is about three-fourths of that of Japan

The sea covers nearly three-fourths of the earth's surface

Three-fourths of the town was destroyed by the typhoon

Two-thirds of the students of this school are boys

Two thirds of the employees of this company are engineers