Basic Math Examples

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

Step 1

To write $b$ as a fraction with a common denominator, multiply by $\frac{a}{a}$ .

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

Step 2

Combine the numerators over the common denominator.

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