👉 In mathematics, a denominator is defined as the number of times one number (the numerator) is multiplied by another number (the denominator). For example, in the fraction 3/4, the denominator is 4 because it multiplies with 3 to get the value of 3. The denominator is used when you are trying to divide two numbers or quantities. It helps you understand how many times one quantity can be divided into another quantity without leaving any remainder.