complex fraction
no idea
There is no specific name. They can be fractions which contain algebraic or trigonometric or non-integral exponential expressions.
It is a complex fraction.
A complex fraction.
That's a complex fraction.
That's a complex fraction.
Or both. That's a complex fraction.
That's a complex fraction.
compound fraction
It is a compound fraction.
It is part of a compound fraction.
It is a compound fraction.