Reciprocal

The number which multiplies another number to give $1$. For non-zero $\frac{a}{b}$, its reciprocal is $\frac{b}{a}$.

A number which gives 1 when multiplied by the original non-zero number. The reciprocal of $a$ is $\frac{1}{a}$.

The multiplicative inverse of a non-zero number. The reciprocal of $a$ is $\frac1a$, and their product is $1$.

The reciprocal of a non-zero number is the number that multiplies by it to give 1.

The result of dividing 1 by a non-zero number; the reciprocal of 4 is $\frac14$.

The result of turning a non-zero fraction upside down; the reciprocal of $\frac ab$ is $\frac ba$.

The number obtained by dividing 1 by a non-zero number. The reciprocal of $a$ is $\frac{1}{a}$.

The fraction formed by interchanging a non-zero fraction's numerator and denominator; the reciprocal of $\frac{a}{b}$ is $\frac{b}{a}$.

A number which multiplies with the original number to give 1; the reciprocal of non-zero $a$ is $\frac{1}{a}$.