Addition Subtraction Rational Expressions PDF
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Summary
This document provides a lesson or notes on adding and subtracting rational expressions with the same denominators. It includes examples and a procedure for solving these types of problems. The presentation also includes exercises for the student to complete.
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Adding and Subtracting Rational Expression with the same Denominator RULE: If two rational algebraic expression have the same denominators, the sum is defined as a + b = a+b, c c c and the difference is a – b = a-b c...
Adding and Subtracting Rational Expression with the same Denominator RULE: If two rational algebraic expression have the same denominators, the sum is defined as a + b = a+b, c c c and the difference is a – b = a-b c c c PROCEDURE: 1. Add (or subtract) the numerators. 2. retain the common denominator. 3. simplify the result. Ex. - Add the numerators 1. 7a + 5a = 12a and copy the 3 3 3 denominator. = 4a - Reduce to lowest term. 2. 7a – 5a = 2a Add the numerators 3 3 3 and copy the denominator. 3. 16c + 24 = 16c + 24 =8(2c+3) 7 7 7 7 4. 9r + 81 r+9 r+9 = 9r+81 = 9(r+9) = 9 r+9 r+9 5. 7x - 1 = 7x-1 7x+1 7x+1 7x+1 6. 8p - p + 14 7 7 ` Seat work No. 4 Do page 83 Test I (odd numbers)
