(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

simplify 5√20 / 5√15

2. Relevant equations

express your answer as a surd

3. The attempt at a solution

Looking for someone to check my work

1. multiply (5√20)/(2√15) by (√15/√15)

2. Above gives (5√300)/30

3. Simplify the topline to 5 √100 x √3

4. answer (50√3) / 30

I checked my answer using http://www.wolframalpha.com/input/?i=simplify+(5√20)/(2√15)

says I should get 5/√3

how do you go about working out the above answer

thanks

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# Homework Help: Surds - Division & rationalising

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