How do you simplify sqrt20/2 - sqrt(5/4)?

1 Answer
May 8, 2015

I would write it as:
$\frac{\sqrt{5 \cdot 4}}{2} - \frac{\sqrt{5}}{2} = 2 \frac{\sqrt{5}}{2} - \frac{\sqrt{5}}{2} = \frac{\sqrt{5}}{2}$