Posted by Bryan on Wednesday, July 16, 2008 at 8:18pm.
Find another name for the given number, but with the deniominator indicated. Use multiplication by 1.
2/7= ?/14

Math  drwls, Wednesday, July 16, 2008 at 8:29pm
7 ? = 28
? = 4
I don't see what "multiplication by 1" gets you.

Math  Bryan, Wednesday, July 16, 2008 at 8:35pm
What did you get as the answear? and how did u get it?

Math  drwls, Wednesday, July 16, 2008 at 8:45pm
I got 4, by crossmultiplying.
When a/b = c/d, ad = bc
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