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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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Rational Expressions Adding Subtracting
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.
Finding the Least Common Denominator (LCD) http://my.hrw.com/math06_07/nsmedia/lesson_videos/alg2/player.html?contentSrc=8124/8124.xml
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
Adding Rational Expressions http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-640s.html
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
Subtracting Rational Expressions http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-641s.html