Reciprocal numbers are often used to get rid of a fraction in an equation that contains an unknown variable, making it easier to solve. It is also used to divide a fraction by another fraction.

Why do we use reciprocals?

A number's reciprocal is the upside down version of that number when it's written as a fraction. ... Reciprocals are really helpful when it comes to dividing fractions. We can use reciprocals to turn fraction division into fraction multiplication.

What is reciprocal used for in math?

The reciprocal of a given number when multiplied by that number gives one as a product. Thus, it is also called the multiplicative inverse. In math, reciprocal can simply be defined as the inverse of a number or a value. For a real number n, reciprocal is 1/n, such as reciprocal of 3 is 1/3.