Basic Algebra/Rational Expressions and Equations/Adding and Subtracting When the Denominators are the Same

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Vocabulary

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Lesson

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You have to leave the same denominator and add the nominators: 

   x   +   3x =
  x+1      x+1

  x + 3x =
   x+1

  4x
  x+1

Example Problems

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Practice Games

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Practice Problems

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Easy

Medium

Hard

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