Simplify (3 square root of 15)/( square root of 9)

$\frac{3 \sqrt{15}}{\sqrt{9}}$

Combine $\sqrt{15}$ and $\sqrt{9}$ into a single radical.

$3 \sqrt{\frac{15}{9}}$

Cancel the common factor of $15$ and $9$ .

Factor $3$ out of $15$ .

$3 \sqrt{\frac{3 (5)}{9}}$

Cancel the common factors.

Factor $3$ out of $9$ .

$3 \sqrt{\frac{3 \cdot 5}{3 \cdot 3}}$

Cancel the common factor.

$3 \sqrt{\frac{3 \cdot 5}{3 \cdot 3}}$

Rewrite the expression.

$3 \sqrt{\frac{5}{3}}$

Rewrite $\sqrt{\frac{5}{3}}$ as $\frac{\sqrt{5}}{\sqrt{3}}$ .

$3 \frac{\sqrt{5}}{\sqrt{3}}$

Multiply $\frac{\sqrt{5}}{\sqrt{3}}$ by $\frac{\sqrt{3}}{\sqrt{3}}$ .

$3 (\frac{\sqrt{5}}{\sqrt{3}} \cdot \frac{\sqrt{3}}{\sqrt{3}})$

Combine and simplify the denominator.

Multiply $\frac{\sqrt{5}}{\sqrt{3}}$ by $\frac{\sqrt{3}}{\sqrt{3}}$ .

$3 \frac{\sqrt{5} \sqrt{3}}{\sqrt{3} \sqrt{3}}$

Raise $\sqrt{3}$ to the power of $1$ .

$3 \frac{\sqrt{5} \sqrt{3}}{{\sqrt{3}}^{1} \sqrt{3}}$

Raise $\sqrt{3}$ to the power of $1$ .

$3 \frac{\sqrt{5} \sqrt{3}}{{\sqrt{3}}^{1} {\sqrt{3}}^{1}}$

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

$3 \frac{\sqrt{5} \sqrt{3}}{{\sqrt{3}}^{1 + 1}}$

Add $1$ and $1$ .

$3 \frac{\sqrt{5} \sqrt{3}}{{\sqrt{3}}^{2}}$

Rewrite ${\sqrt{3}}^{2}$ as $3$ .

Use $\sqrt[n]{a^{x}} = a^{\frac{x}{n}}$ to rewrite $\sqrt{3}$ as $3^{\frac{1}{2}}$ .

$3 \frac{\sqrt{5} \sqrt{3}}{{(3^{\frac{1}{2}})}^{2}}$

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

$3 \frac{\sqrt{5} \sqrt{3}}{3^{\frac{1}{2} \cdot 2}}$

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

$3 \frac{\sqrt{5} \sqrt{3}}{3^{\frac{2}{2}}}$

Cancel the common factor of $2$ .

Cancel the common factor.

$3 \frac{\sqrt{5} \sqrt{3}}{3^{\frac{2}{2}}}$

Rewrite the expression.

$3 \frac{\sqrt{5} \sqrt{3}}{3^{1}}$

Evaluate the exponent.

$3 \frac{\sqrt{5} \sqrt{3}}{3}$

Simplify the numerator.

Combine using the product rule for radicals.

$3 \frac{\sqrt{5 \cdot 3}}{3}$

Multiply $5$ by $3$ .

$3 \frac{\sqrt{15}}{3}$

Cancel the common factor of $3$ .

Cancel the common factor.

$3 \frac{\sqrt{15}}{3}$

Rewrite the expression.

$\sqrt{15}$

The result can be shown in multiple forms.

Exact Form:

$\sqrt{15}$

Decimal Form:

$3.87298334 \dots$

Simplify (3 square root of 15)/( square root of 9)

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