Homework Help: Math

Posted by Sonia on Sunday, September 27, 2009 at 11:30am.

How do I multiply fractions with different denominators? Do I always do cross multiplication?
EX: Xy, when X = -5/16 and y = 7/15.

2. How do I write 12/5 as a whole number?

Math - PsyDAG, Sunday, September 27, 2009 at 1:01pm
(-5/16)(7/15) = -35/240 = -7/48

It will not be a whole number, but mixed = 2 2/5 = 2.4

I hope this helps. Thanks for asking.

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