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Mastering Rational Expressions: Finding the Least Common Denominator (LCD)

Learn step-by-step how to add and subtract rational expressions by finding the LCD, simplifying terms, and ensuring answers are in lowest terms. Watch detailed videos and practice problems to enhance your skills.

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Mastering Rational Expressions: Finding the Least Common Denominator (LCD)

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  1. Rational Expressions Adding Subtracting

  2. Finding the Least Common Denominator (LCD) Step 1 Factor the denominators. Write any repeating factors in exponential form. Step 2 List different factors. If common factors, list the common factor with the highest exponent. Step 3 The LCD is the product from step 2.

  3. Finding the Least Common Denominator (LCD) http://my.hrw.com/math06_07/nsmedia/lesson_videos/alg2/player.html?contentSrc=8124/8124.xml

  4. Adding Rational Expressions Step 1 Find the LCD (Least Common Denominator) Step 2 Rename each term using the LCD Step 3 Add numerators (Keep the Denominator) Step 4 Make sure the answer is in lowest terms

  5. Adding Rational Expressions http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-640s.html

  6. Subtracting Rational Expressions Step 1 Find the LCD (Least Common Denominator) Step 2 Rename each term using the LCD Step 3 Subtract numerators (Keep the Denominator) Step 4 Make sure the answer is in lowest terms

  7. Subtracting Rational Expressions http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-641s.html

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