Answer:
[tex]\sqrt{5}[/tex]
Step-by-step explanation:
To express in simplest radical form, you need to break down the main square root in smaller parts and eliminate them.
We are given:
[tex]\frac{\sqrt{245} }{7}[/tex]
We can break [tex]\sqrt{245}[/tex] into [tex]\sqrt{49}[/tex] × [tex]\sqrt{5}[/tex]
[tex]\sqrt{49}[/tex] is a perfect square which is 7
so it becomes:
[tex]\frac{7\sqrt{5} }{7}[/tex]
because 7 is present in both the numerator and denominator, we can cancel the 7 out, leaving us with:
[tex]\sqrt{5}[/tex]