Algebra Examples

${(\frac{a}{b})}^{- 1} + {(\frac{b}{a})}^{- 1}$

Step 1

Change the sign of the exponent by rewriting the base as its reciprocal.

$\frac{b}{a} + {(\frac{b}{a})}^{- 1}$

Step 2

Change the sign of the exponent by rewriting the base as its reciprocal.

$\frac{b}{a} + \frac{a}{b}$