Saturday, December 5, 2009

9.3 Add and Subtract Decimals

Three steps for adding or subtracting fractions
1. Make sure denominators are the same. (use LCM to find common denominator)
2. Add the numerators – write the sum over the common denominator
3. Simplify if necessary (this could mean writing as a mixed number).


How to Add & Subtract Fractions -- powered by eHow.com
Check out these examples from mathisfun.com

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