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INSTRUCTORS Carleen Eaton Grant Fraser
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For more information, please see full course syllabus of Algebra 2
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  • Download Lecture Slides

  • Table of Contents

  • Related Books

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Adding and Subtracting Rational Exprsesions

  • To add or subtract: first, find the LCM of the denominators. Then adjust the numerator and denominator of each fraction so that its denominator is the LCM. Finally, add or subtract the numerators and simplify the result.

  • Most of the time, the result will not simplify.

Adding and Subtracting Rational Exprsesions

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
    • Example: Fractions
  • Least Common Multiple (LCM) 1:36
    • Example
  • Adding and Subtracting 7:56
    • Least Common Denominator (LCD)
    • Example: Fractions
    • Example: Rational Expression
    • Equivalent Fractions
    • Example
  • Simplifying Complex Fractions 20:03
    • Example
  • Lecture Example 1 26:34
  • Lecture Example 2 31:06
  • Additional Example 3
  • Additional Example 4