The denominator is the number at the bottom of a fraction.
was
She has two halves of the cookie.
had
The penguin swims in ice water.
swam
She takes the medicine two times a day.
took
He likes to throw caution to the wind.
liked
The governor of Arizona is Doug Ducey.
was
One requirement in Mrs. Frederick's class is that you come to class on time.
was
The passenger on the plane finishes reading the newspaper.
finished
She throws the remote toward her sister who is sitting on the couch.
threw
You put the numerator on the top of the fraction.
put