http://107mathblog.blogspot.com/2010/03/multiplying-and-dividing-intergers.html#links
I think this really helped me with multiplying fractions and dividing them too...
I like how it shows a picture of how to change the sign when dividing.
The different colors really made the post stand out.
I also liked how they put what they did in the picture and they explained it very good.
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