The answer is yes, when two improper fractions is multiplied, the product will always be more than one.
Because when you convert an Improper fraction, the decimal value of it is always more than 1. Thus any improper fraction, added or multiplied with each other the answer will always be more than 1.
Example:
5/ 2 = this is an improper fraction. To convert it into decimal divide the denominator from the numerator
=> 5 / 2
=> 2 1/2