Evaluate 1/2-1/8

$\frac{1}{2} - \frac{1}{8}$

Step 1

To write $\frac{1}{2}$ as a fraction with a common denominator, multiply by $\frac{4}{4}$ .

$\frac{1}{2} \cdot \frac{4}{4} - \frac{1}{8}$

Step 2

Write each expression with a common denominator of $8$ , by multiplying each by an appropriate factor of $1$ .

Multiply $\frac{1}{2}$ by $\frac{4}{4}$ .

$\frac{4}{2 \cdot 4} - \frac{1}{8}$

Multiply $2$ by $4$ .

$\frac{4}{8} - \frac{1}{8}$

Step 3

Combine the numerators over the common denominator.

$\frac{4 - 1}{8}$

Step 4

Subtract $1$ from $4$ .

$\frac{3}{8}$

Step 5

The result can be shown in multiple forms.

Exact Form:

$\frac{3}{8}$

Decimal Form:

$0.375$