A reciprocal is one of a pair of numbers that when multiplied with another number equals the number 1.

For example, if we have the number 15/9921, the multiplicative inverse, or reciprocal, would be 1 ÷ 15/9921 because when you multiply 15/9921 and 1 ÷ 15/9921 together, you get 1

Reciprocal (or) Multiplicative Inverse is 9921/15