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Mathematics 19 Online
OpenStudy (anonymous):

simplify √5/(3√5)

OpenStudy (danjs):

hi

OpenStudy (anonymous):

Hello

OpenStudy (danjs):

\[\frac{ \sqrt{5} }{ 3\sqrt{5} }\]

OpenStudy (anonymous):

Yes

OpenStudy (danjs):

multiply top and bottom by sqrt(5)

OpenStudy (anonymous):

Ok so.. \[5 x \sqrt{5}\]

OpenStudy (danjs):

\[\frac{ \sqrt{5}\sqrt{5} }{3\sqrt{5\sqrt{5}} } = \frac{ 5 }{ 3*5 } = \frac{ 1 }{ 3 }\]

OpenStudy (danjs):

you could have just divided top and bottom by sqrt(5) too

OpenStudy (anonymous):

Ok i think i got it

OpenStudy (anonymous):

but

OpenStudy (anonymous):

thats not one of the multiple answers

OpenStudy (anonymous):

hello?

OpenStudy (danjs):

yes, \[\sqrt{5} / (3\sqrt{5}) simplifies \to 1/3\]

OpenStudy (danjs):

what are the choices?

OpenStudy (anonymous):

Ok so choice A is [1/ 5 6\] but the 5 is bigger than the 6

OpenStudy (danjs):

the answer is 1/3 or 0.33333333

OpenStudy (anonymous):

B \[-\frac{ 5 }{ 5 6 }\] but the 5 is seperated from the 6 and is bigger than the 6

OpenStudy (anonymous):

ok thanks anyways

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