Evaluate - square root of 64/49

$- \sqrt{\frac{64}{49}}$

Step 1

Rewrite $\sqrt{\frac{64}{49}}$ as $\frac{\sqrt{64}}{\sqrt{49}}$ .

$- \frac{\sqrt{64}}{\sqrt{49}}$

Step 2

Simplify the numerator.

Rewrite $64$ as $8^{2}$ .

$- \frac{\sqrt{8^{2}}}{\sqrt{49}}$

Pull terms out from under the radical, assuming positive real numbers.

$- \frac{8}{\sqrt{49}}$

Step 3

Simplify the denominator.

Rewrite $49$ as $7^{2}$ .

$- \frac{8}{\sqrt{7^{2}}}$

Pull terms out from under the radical, assuming positive real numbers.

$- \frac{8}{7}$

Step 4

The result can be shown in multiple forms.

Exact Form:

$- \frac{8}{7}$

Decimal Form:

$- 1.\overline{142857}$

Mixed Number Form:

$- 1 \frac{1}{7}$