Basic Math Examples

$\frac{a^{n - 1}}{a^{n}}$

Step 1

Cancel the common factor of $a^{n - 1}$ and $a^{n}$ .

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Step 1.1

Factor $a^{n}$ out of $a^{n - 1}$ .

$\frac{a^{n} a^{- 1}}{a^{n}}$

Step 1.2

Cancel the common factors.

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Step 1.2.1

Multiply by $1$ .

$\frac{a^{n} a^{- 1}}{a^{n} \cdot 1}$

Step 1.2.2

Cancel the common factor.

$\frac{a^{n} a^{- 1}}{a^{n} \cdot 1}$

Step 1.2.3

Rewrite the expression.

$\frac{a^{- 1}}{1}$

Step 1.2.4

Divide $a^{- 1}$ by $1$ .

$a^{- 1}$

Step 2

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{1}{a}$