It depends on the context.
If the students are acting individually, then "are" is correct:
Three-quarters of the students are failing the class.
If you are referring to a single collective entity then "is" is correct:
Three quarters of the students is an unacceptable number of failures.
No, three quarters is more than two quarters.
Assuming the question refers to 5 and three quarters, there are 20 quarters in 5 and three more so 23.
11 quarters
23 quarters
3
No, three quarters is more than two quarters.
Three fourths is three quarters One half is two quarters. Three quarters is greater than two quarters.
There are three quarters in three quarters.
Assuming the question refers to 5 and three quarters, there are 20 quarters in 5 and three more so 23.
11 quarters
23 quarters
three quarters
1 1/2
3
Three quarters of a metre = 0.75 metres.
Three-quarters of an hour = 45 minutes
There is no such thing as having three-quarters of a handicap