Ch 9.4: Adding and Subtracting Rational Expressions - PowerPoint PPT Presentation

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Ch 9.4: Adding and Subtracting Rational Expressions

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Ch 9.4: Adding and Subtracting Rational Expressions Adding Fractions Find a common denominator Change the numerators Add the numerators, keep the denominator, and ... – PowerPoint PPT presentation

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Title: Ch 9.4: Adding and Subtracting Rational Expressions


1
Ch 9.4 Adding and Subtracting Rational
Expressions
2
Adding Fractions
  • Find a common denominator
  • Change the numerators
  • Add the numerators, keep the denominator, and
    simplify!

LCD 35
3
Adding/Subtracting monomials
  • Follow same rules as adding/subtracting
    fractions!
  • Simplify ONLY if EVERY term can be simplified!!

4
7
9
6
5
Adding/Subtracting polynomials
  • Follow the same rules as fractions!
  • You may need to factor the denominator to find
    the LCD

6
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