A fraction is considered to be improper if the numerator is bigger in value than the denominator and this means that the number on top would be smaller in value compared to the number at the bottom.
It is a fraction that is larger than one.

The number $\frac{9}{5}$ could be considered as an improper fraction, because the numerator is bigger than the denominator.

In the above scenario the numerator 9 is greater than the denominator 5.
In some cases, we have to convert improper fractions into mixed numbers and this can be done by estimating the approximate value of the mixed fraction.

When the value of the Numerator is bigger than the denominator, we call the fraction as an Improper fraction. Let's look more deep into each term in the definition of an Improper fraction.

Words to remember:
Numerator: The top number of a fraction.
Denominator: The bottom number of a fraction, a number that names a part of a whole or part of a set.
Improper fraction: A fraction in which the numerator is larger than the denominator.
Mixed fraction: When a numeral has a whole number and a fraction number, it is known as a mixed fraction. Example: 4$\frac{2}{3}$