Question

Is $0.3$ the multiplicative inverse of $3\frac{1}{3}$? Why or why not?

Answer 1

$3\frac{1}{3}=\frac{10}{3}$

If it is a multiplicative inverse of $3\frac{1}{3}$ then the product should be $1$
$0.3\times \frac{10}{3}=\frac{3}{10}\times \frac{10}{3}=1$

Product $=1$

$\therefore 0.3$ is a Multiplicative Inverse of $3\frac{1}{3}$.