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Adding and Subtracting Rational Expressions
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Recall:When adding / subtracting fractions, always look for LCD
ex. 34
27
ex. 56
37+
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To Simplify Algebraic Fractions:
1. Factor / Find LCD2. Change fractions to have common denominators3. Add / Subtract4. Simplify / reduce5. Restrictions on variables
ex. 67x
87x+
ex. 6x3
2xx3
6
4x +
6x2
ex.
ex. 23x
52x+
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4x+3
ex. 5x2
ex. 3x2x
2x21
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ex. x3x2+2x15
x1x+5
+
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2x2 4
ex 12x x2
+
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3x+3
2x3
4xx2 9+
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2xx+2
1x24
32 x
+
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5xx2 25 + 3
5 x2x
x2 + 4x 5
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Exercise # 44omit #
Assignment:
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