Which kind of number is represented by a fraction greater than 1?

A fraction greater than 1 is classified as an improper fraction. An improper fraction is characterized by having a numerator that is greater than its denominator, which leads to a value greater than one. For instance, in the fraction 5/4, the number 5 (the numerator) exceeds 4 (the denominator), indicating that it represents a quantity larger than 1.

Choosing the option of an improper fraction accurately describes this specific type of fraction and its properties. Other types of numbers, such as unit fractions, whole numbers, and decimal numbers, do not encompass the same definition. A unit fraction specifically refers to fractions with 1 as the numerator, such as 1/2 or 1/3, which are always less than 1. Whole numbers are non-negative integers (0, 1, 2, etc.) which do not include fractions. Decimal numbers can be greater than or less than 1, but they are not defined by the form of a fraction. Thus, the designation of improper fraction is the most fitting for the condition described in the question.