A fraction represents a portion of a whole item.
A simple fraction represents a part of the whole.
28 is an integer, and there is no sensible way to represent it as a fraction.
a can represent an integer or fraction, or almost anything else.
It is simply 375/1 as an improper fraction
2426 is an integer, and there is no sensible way to represent it as a fraction.
10 is an integer, and there is no sensible way to represent it as a fraction.
A fraction.
You could write a fraction as a proper, improper or mixed fraction.
What is a fraction in which the numerator and denominator represent the same amount but are in different units?
23 is an integer and there is not a sensible way to represent it as a fraction.
91000 is an integer and so there is no sensible way to represent it as a fraction.