Pre-Algebra Examples

$\frac{1}{2 \sqrt{x}}$

Step 1

Multiply $\frac{1}{2 \sqrt{x}}$ by $\frac{\sqrt{x}}{\sqrt{x}}$ .

$\frac{1}{2 \sqrt{x}} \cdot \frac{\sqrt{x}}{\sqrt{x}}$

Step 2

Combine and simplify the denominator.

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Step 2.1

Multiply $\frac{1}{2 \sqrt{x}}$ by $\frac{\sqrt{x}}{\sqrt{x}}$ .

$\frac{\sqrt{x}}{2 \sqrt{x} \sqrt{x}}$

Step 2.2

Move $\sqrt{x}$ .

$\frac{\sqrt{x}}{2 (\sqrt{x} \sqrt{x})}$

Step 2.3

Raise $\sqrt{x}$ to the power of $1$ .

$\frac{\sqrt{x}}{2 ({\sqrt{x}}^{1} \sqrt{x})}$

Step 2.4

Raise $\sqrt{x}$ to the power of $1$ .

$\frac{\sqrt{x}}{2 ({\sqrt{x}}^{1} {\sqrt{x}}^{1})}$

Step 2.5

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$\frac{\sqrt{x}}{2 {\sqrt{x}}^{1 + 1}}$

Step 2.6

Add $1$ and $1$ .

$\frac{\sqrt{x}}{2 {\sqrt{x}}^{2}}$

Step 2.7

Rewrite ${\sqrt{x}}^{2}$ as $x$ .

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Step 2.7.1

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{x}$ as $x^{\frac{1}{2}}$ .

$\frac{\sqrt{x}}{2 {(x^{\frac{1}{2}})}^{2}}$

Step 2.7.2

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{\sqrt{x}}{2 x^{\frac{1}{2} \cdot 2}}$

Step 2.7.3

Combine $\frac{1}{2}$ and $2$ .

$\frac{\sqrt{x}}{2 x^{\frac{2}{2}}}$

Step 2.7.4

Cancel the common factor of $2$ .

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Step 2.7.4.1

Cancel the common factor.

$\frac{\sqrt{x}}{2 x^{\frac{2}{2}}}$

Step 2.7.4.2

Rewrite the expression.

$\frac{\sqrt{x}}{2 x^{1}}$

Step 2.7.5

Simplify.

$\frac{\sqrt{x}}{2 x}$