Question

What's the square root of 7/20? Or is there a site that can help me do fraction square roots?

Answer 1

go to Google type in square root calculator and you should have it but the answer is approx 2.65

Answer 2

you need a calculator if you want a decimal form of the answer.
You can also do this
\[ \sqrt{\frac{7}{20}}= \frac{\sqrt{7}}{\sqrt{20}} \]
we can write 20 as \( 2\cdot 2 \cdot 5\)
\[ \frac{\sqrt{7}}{\sqrt{20}} = \frac{\sqrt{7}}{\sqrt{ 2\cdot 2 \cdot 5}}
\]
notice we can "pull out" the pair of 2's from the bottom, and write your problem as
\[ \frac{\sqrt{7}}{\sqrt{ 2\cdot 2 \cdot 5}}= \frac{\sqrt{7}}{2\sqrt{ 5}} \]

Answer 3

which is not really much simpler. But it is a little bit simpler.

Answer 4

Whoa, thanks!