What is a numerical representation that part of a whole usually written with aline drawn between two numbers?

A numerical representation of a part of a whole, usually written with a line drawn between two numbers, is called a fraction. The number above the line, known as the numerator, represents the part, while the number below the line, called the denominator, represents the whole. For example, in the fraction 3/4, 3 is the part and 4 is the whole.