math
posted by shynice .
which pair of ratios can form a true proportion
9/12,5/8
25/20,16/21
6/27,2/9
7/12,10/15

What do you think?
Hint: In which of those answers is one denominator divisible by the other? 
6 / 27 = 3 * 2 / ( 3 * 9 ) = 2 / 9

i thiink d or c

Is 15 divisible by 12?
Is 27 divisible by 9? 
no 15 is not divisble by 12
and yes 27 is divisble by 9 
so it c

Yes, c.
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