Question

Square root of 100/121

Answer 1

Ah... good ol' square roots...

Whenever you take the square root of multiplication or division, you can do the square roots separately. So, we can write:

$\sqrt{\frac{100}{121}} = \frac{\sqrt{100}}{\sqrt{121}}$

This nifty truth allows us to easily find the answer:
$\frac{\sqrt{100}}{\sqrt{121}} = \frac{10}{11}$

All done!