Multiplication and Division of Signed Mumbers: Determine the reciprocal of the given number

What is the inverse of 3?

$\frac{1}{3}$

What is the inverse of 12?

$\frac{1}{12}$

What is the opposite number of $\frac{4}{5}$?

$\frac{5}{4}$

What is the opposite number of $\frac{7}{2}$?

$\frac{2}{7}$

What is the opposite number of $-9\frac{1}{3}$?

$-\frac{3}{28}$

What is the opposite number of $14.8$?

$\frac{5}{74}$

What is the opposite number of $1\frac{2}{5}$?

$\frac{5}{7}$

What is the opposite number of $49$?

$\frac{1}{49}$

What is the opposite number of $-18$?

$-\frac{1}{18}$

What is the opposite number of $-\frac{7}{15}$?

$-2\frac{1}{7}$

What is the opposite number of $13.5$?

$\frac{2}{27}$

What is the opposite number of $-8$?

$-\frac{1}{8}$

What is the opposite number of $7\frac{1}{4}$?

$\frac{4}{29}$

What is the opposite number of $-\frac{4}{3}$?

$-\frac{3}{4}$

What is the opposite number of $2.1$?

$\frac{10}{21}$