bonjovifan03
Find the equivalent expression with the given denominator 9/12=?/108. I think the answer is 9/108?



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cwrw238
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how do you get 108 from 12 ?

bonjovifan03
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divided 108 by 12 is that wrong?

cwrw238
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108 = 12 * 9 right?

cwrw238
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you get 108 by multiplying 12 by 9
so to preserve the fraction you must multiply 9 by 9 also

Mertsj
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dw:1358720999519:dw

cwrw238
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 just as merstsj has written

bonjovifan03
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Well you are both right, thanks for your help.. I am not good at this lol

cwrw238
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yw

cwrw238
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if you multiply by 9/9 you are effectively multiply ing by 1 so the fraction has the same value

cwrw238
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for example
1 / 2 = 1*2 / 2*2 = 2/4
2/3 = 2*3 / 3*3 = 6 / 9