It is simply 45/1 as an improper fraction
50/45 is an improper fraction. 1 and 1/9 is an equivalent mixed number in lowest form.
45/22 is already an improper fraction. As a mixed number, it is 2 1/22.
what is the improper fraction for negative 3 and 4/5
There isn't one. You can only make an improper fraction from a mixed fraction, which a whole number with a fraction on its side
Cannot be done.
As an improper fraction in its simplest form it is 45/2
Fraction of one hour is 45 minutes is 0.750
445 is an integer and so there is no sensible way of expressing it as an improper fraction.
It is 45/1440.
It is: 1 and 45/60 which is 7/4 as an improper fraction in its lowest terms
45 minutes is 45/60 hours.