Simplify √(49/4)

Question

Simplify 
`√(49/4)`

Answer 1

`\sqrt{ (x)/(y) } = ( √(x) )/( √(y) ) \ \ \ \ and\ \ \ x \geq 0,\ y>0\\\\-----------------\\\\ \sqrt{ (49)/(4) }= ( √(49) )/( √(4) ) = (7)/(2) =3 (1)/(2)`

Answer 2

`\sqrt{(49 )/(4)} =(√(49))/(√(4))=(√(7^2))/(2^2)=(7)/(2)=3(1)/(2)`