please help fast

square root of 6 over 25

${\color{red}\sqrt{\frac{6}{25}}}=\frac{\sqrt{6}}{5}\color{blue}=0.489897948556$

!

Do you mean $\sqrt{\dfrac{6}{25}}$ or $\dfrac{\sqrt{6}}{25}$?

As asinus did $\sqrt{\dfrac{6}{25}}$, I will do the other.

$\sqrt{6}\div 25\approx 0.9797958971$

Also, you cannot simplify this.

The square root of 6/25 = 0.4898979485566356.