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square root of 4/5

 Jun 2, 2014

Best Answer 

 #1
avatar+92 
+5

So technically, we can write the square root of 4/5 as...

sqrt(4) / sqrt(5)

And then simplify it as thus...

2 / sqrt(5)

Now we need to move the square root to the numerator. We can do it like this.

( 2 / sqrt (5) ) * ( sqrt(5) / sqrt (5) )

= 2 * sqrt(5) / 5

If you were asked for the exact answer, then leave it as is. If asked for a rounded answer, then find the square root of 5 using a calculator, and go on from there.

 Jun 2, 2014
 #1
avatar+92 
+5
Best Answer

So technically, we can write the square root of 4/5 as...

sqrt(4) / sqrt(5)

And then simplify it as thus...

2 / sqrt(5)

Now we need to move the square root to the numerator. We can do it like this.

( 2 / sqrt (5) ) * ( sqrt(5) / sqrt (5) )

= 2 * sqrt(5) / 5

If you were asked for the exact answer, then leave it as is. If asked for a rounded answer, then find the square root of 5 using a calculator, and go on from there.

Feitan Jun 2, 2014

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