Question

what is the awnswer to the equation a/12=16

Answer 1

What do you get if you multiply both sides of the equation by twelve?

Answer 2

144 and 192

Answer 3

Multiplication is the inverse operation operation of division,
so the common factor will cancel on the left hand side of the equation
\[\frac a{12}=16\\
12\times\frac a{12}=12\times16\\
\color{red}{\cancel{\color{black}{12\times}}}\frac a{\color{red}{\cancel{\color{black}{12}}}}=12\times16\]