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Mathematics 10 Online
OpenStudy (llroberts43):

15/√6 I know I need to rationalize the denominator, so I come up with 15√6/6. Now the book tells me to divide that numerator and denominator by 3. Why 3?

OpenStudy (danjs):

if you want to simplify that more, 3 can be factored from both the 15 and the 6 as the greatest common factor

OpenStudy (llroberts43):

Oh, I feel like an idiot....lol. Thank you

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