What is the reciprocal of 13?
The reciprocal of a number is one divided by the number. In this case, we need to divide one by 13. This can be written as the fraction one thirteenth. The reciprocal of 13 is one thirteenth.
When finding a reciprocal of any integer number, we just write this number underneath one as a fraction. For example, the reciprocal of four is one quarter and the reciprocal of nine is one-ninth.