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Rational Expressions: Homework Help Chapter Exam

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Multiplying and Dividing Rational Expressions

Adding and Subtracting Rational Expressions
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3. Rewrite each rational expression with the LCD as the denominator. 4. Add/subtract the numerators.

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Adding and subtracting rational expressions with like denominators is similar to adding and subtracting fractions with like denominators. It is a three-step process: first add the numerators, then simplify the numerator, then simplify the result by factoring.

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First, find the LCM of the unlike denominators to form the LCD. Then write each expression as an equivalent expression by multiplying it by a form of 1 using the LCD. Then, subtract the numerators and write the difference over the LCD. The resulting rational expression can then be simplified. (+) Understand that rational expressions form a system analogous to the rational numbers, closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply, and divide rational expressions.

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View Homework Help - adding and subtracting rational expressions homework key from MATH AP STATS at Zeeland West High School. Answers: Chapter 8 Rational . Multiplying and Dividing Rational Expressions More help with rational expressions at Adding and Subtracting Rational Expressions - next lesson Simplifying Rational Expressions - previous lesson About the Author. Welcome to MathPortal.