What is the multiplicative inverse of $7$?

$\dfrac { 1 } { 7 }$
1. Multiplicative inverse of a non zero integer $a$ is the number $\dfrac { 1 } { a }$, as $a . \dfrac { 1 } { a } = 1$.
2. Thus, the multiplicative inverse of $7$ is $\dfrac { 1 } { 7 }$.