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Mathematics 8 Online
OpenStudy (anonymous):

PLEASE HELP!!!!!!

OpenStudy (anonymous):

\[\sqrt{50}/3\sqrt{15}\]

OpenStudy (mathstudent55):

Is this it? \( \dfrac {\sqrt{50}}{3 \sqrt{15}} \)

OpenStudy (anonymous):

Yes I just don't know how to put it that way.

OpenStudy (anonymous):

I'd say just plug it in a calculator.

OpenStudy (anonymous):

Ya but I have to simplify it and not find the answer. @lanct1

OpenStudy (anonymous):

Ah, the question didn't say that so I just go straight to answer. Mhmmm.... I got to think about this.

OpenStudy (mathstudent55):

Ok. \(= \dfrac{1}{3} \dfrac{\sqrt{50}}{\sqrt{15}} \) \( =\dfrac{1}{3} \sqrt{\dfrac{50}{15}} \) \( =\dfrac{1}{3} \sqrt{\dfrac{25 \times 2}{15}} \) \( =\dfrac{5}{3} \sqrt{\dfrac{2}{15}} \) \( =\dfrac{5}{3} \sqrt{\dfrac{2}{15}} \sqrt{\dfrac{15}{15}} \) \( =\dfrac{5}{3} \sqrt{\dfrac{30}{225}} \) \( =\dfrac{5}{3 \times 15} \sqrt{30} \) \( =\dfrac{1}{9 } \sqrt{30} \)

OpenStudy (anonymous):

@mathstudent55 do you always supposed to have the 1 as a numerator when it doesn't have a number for the numerator?

OpenStudy (mathstudent55):

Yes. For example, if you reduce this fraction, \( \dfrac{4}{20} \) by dividing the numerator and denominator by 4. then you get: 4/4 = 1, and 20/4 = 5, so the reduced fraction is: \( \dfrac{1}{5} \)

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