As a fraction, 1.25 can be written as 1 1 /4 or 5/4. The number 1 1/4 is called a mixed fraction and 5/4 is an improper fraction.
Another way to find the answer is to use an online decimal to fraction converter at onlineconversion.com.
A mixed fraction is a whole number combined with a proper fraction. A proper fraction has a lower numerator than denominator. In an improper fraction, the numerator is higher than the denominator.