It is a compound fraction.
The numerator and denominator in both types of fractions are integers. In a proper fraction the numerator is smaller than the denominator while in an improper fraction the numerator is larger.
Without seeing the fractions in question it would be assumed that they would form equivalent fractions.
An improper fraction is already in it's simplest form as long as in the fraction part the denominator is bigger then the numerator.
In that case, and assuming both fractions are positive, the one with the larger denominator is the smaller fraction, because you are dividing by a larger number.
They could be fractions in which the numerator or the denominator, or both, are complex numbers.
"Regular" fractions have integers for the numerator and denominator. Complex fractions have fractions at one or both of those spots.
That means that there is a main fraction; the numerator, the denominator, or both, of it, are in turn fractions.
It is called a complex fraction.
It is a compound fraction.
The numerator and denominator in both types of fractions are integers. In a proper fraction the numerator is smaller than the denominator while in an improper fraction the numerator is larger.
To be called a complex fraction, either the numerator, the denominator, or both, are fractions (or contain fractions).
In standard fractions both numerator and denominator must be integers.
Then the fraction with the smaller denominator is larger.
Both proper and improper fractions have a numerator and a denominator. In a proper fraction the numerator is always less than the denominator. In an improper function the numerator is greater than the denominator
A complex fraction, just waiting to be simplified.
A complex fraction is one in which the numerator, denominator, or both contain a fraction.
That's a complex fraction.