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Adding Rational Expression

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jennilynagwych

This document provides procedures for adding rational expressions with like denominators and different denominators. For like denominators, add the numerators and keep the common denominator. For different denominators, find the least common denominator (LCD), write each expression with this denominator, add the numerators, and keep the LCD as the final denominator. Examples of each procedure are provided.

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Adding Rational Expression
A C B C = A + B C + When C = 0 Procedure: Adding Rational Expression with Like Denominators 1. Add the numerator 2. Retain the common denominator 3. Simplify the answer
2a 4b 3 4b 1. + 2. 10c 13 + 16c 13
Procedure: Adding Rational Expression with Different Denominators 1.Find the Least Common denominator (LCD) 2.Write the equivalent expression if each rational expression 3.Add the numerator and keep the LCD 4.Simplify the result, if possible
2y 5x2 4xy 1. + 3x 2. a a + 3 + 5 a

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Adding Rational Expression

  • 2. A C B C = A + B C + When C = 0 Procedure: Adding Rational Expression with Like Denominators 1. Add the numerator 2. Retain the common denominator 3. Simplify the answer
  • 3. 2a 4b 3 4b 1. + 2. 10c 13 + 16c 13
  • 4. Procedure: Adding Rational Expression with Different Denominators 1.Find the Least Common denominator (LCD) 2.Write the equivalent expression if each rational expression 3.Add the numerator and keep the LCD 4.Simplify the result, if possible
  • 5. 2y 5x2 4xy 1. + 3x 2. a a + 3 + 5 a