Algebra Examples

$\frac{{(3)}^{- 1}}{7}$

Step 1

Move ${(3)}^{- 1}$ to the denominator using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{1}{7 \cdot 3}$

Step 2

Multiply $7$ by $3$ .

$\frac{1}{21}$

Step 3

The result can be shown in multiple forms.

Exact Form:

$\frac{1}{21}$

Decimal Form:

$0.\overline{047619}$