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

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Vocabulary[edit]

Lesson[edit]

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[edit]

Practice Games[edit]

Practice Problems[edit]

Easy


Medium


Hard