Which expression is equal to √5/11 ?

Question

kittiwitti1 · Answer

$$\frac{\sqrt{5}}{11}$$This?
Also, what are your options?

gamenerd123 · Answer

Which expression is equal to 511√511 ?

25/11

5√11/11

5/√11

√55/11

gamenerd123 · Answer

Ignore the question

gamenerd123 · Answer

Those are the options

kittiwitti1 · Answer

$511\sqrt{511}$?

gamenerd123 · Answer

5/√11

gamenerd123 · Answer

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kittiwitti1 · Answer

So you want to find another form of $\large{\frac{5}{\sqrt{11}}}$?

gamenerd123 · Answer

Yes, which expression is equal to it

kittiwitti1 · Answer

Hmm, let's see.
These are your options, yes?
1) $\Large{\frac{25}{11}}$
2) $\Large{\frac{5\sqrt{11}}{11}}$
3) $\Large{\frac{5}{\sqrt{11}}}$
4) $\Large{\frac{\sqrt{55}}{11}}$

welshfella · Answer

multiply top and bottom of the fraction by $$\sqrt{11}$$

kittiwitti1 · Answer

I think there is more than one option as the answer if I got the options right...
are you allowed to pick more than one choice? @Gamenerd123

gamenerd123 · Answer

Find the Square root of 11 and then multiply? or just multiply by 11?

gamenerd123 · Answer

Nope, just one

kittiwitti1 · Answer

Hmm, that's weird, because the original $\Large{\frac{5}{\sqrt{11}}}$ is also one of the options...
But what @welshfella said is correct. You should do this:$$\frac{5}{\sqrt{11}}\times\frac{\sqrt{11}}{\sqrt{11}}$$

welshfella · Answer

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