Question 737703
Another way to write ratio is as a fraction.<P>
p/q = 3/4   and q/r = 12/13<P>
How can you get the q in the first fraction to equal 12?  Multiply that fraction by 3/3.  3/4 * 3/3 = 9/12.  When q is 12, p is 9.<P>
So the ratio of p/r = 9/13
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