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- 1. Chapter 2 Quiz
- 2. Adding Fractions with Unlike Denominators To add fractions with unlike denominators, you must first change the fractions so that they have a common denominator. To find a common denominator, you multiply each fraction by the denominator of the other. Then you find the sum by adding the numerators of the fractions. Simplify if possible by dividing by a common factor.
- 3. Multiply Fractions First, find the product of the numerator. The product of the numerator becomes the new numerator. Then find the product of the denominators. This becomes the new denominator. Simplify if necessary, by dividing by a common factor.
- 4. Find Reciprocal Switch the denominator and numerator around so that the denominator of the original fraction becomes the numerator of the new fraction, and the numerator of the original fraction becomes the denominator of the new fraction.

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