Basic Math Examples

$\frac{1}{2 a} + \frac{1}{a}$

Step 1

To write $\frac{1}{a}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$\frac{1}{2 a} + \frac{1}{a} \cdot \frac{2}{2}$

Step 2

Write each expression with a common denominator of $2 a$ , by multiplying each by an appropriate factor of $1$ .

Tap for more steps...

Step 2.1

Multiply $\frac{1}{a}$ by $\frac{2}{2}$ .

$\frac{1}{2 a} + \frac{2}{a \cdot 2}$

Step 2.2

Reorder the factors of $a \cdot 2$ .

$\frac{1}{2 a} + \frac{2}{2 a}$

Step 3

Combine the numerators over the common denominator.

$\frac{1 + 2}{2 a}$

Step 4

Add $1$ and $2$ .

$\frac{3}{2 a}$