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Demonstrates how to multiply rational expressions, and points out common difficulties. ... The situation is much the same with rational expressions (that is, with polynomial fractions). The only major problem I have seen students having with multiplying and dividing rationals is with illegitimate cancelling, where they try...
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www.purplemath.com/modules/rtnlmult.htm
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Explains what rational expressions are, and describes how to find their domain. ... A "rational expression" is a polynomial fraction, and anything you could do with regular fractions you can do with rational expressions. However, since there are variables in rational expressions, there are some additional considerations.
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www.purplemath.com/modules/rtnldefs.htm
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We use exactly the same procedure to reduce rational expressions. ... First factor all the expressions: (I also put the denominators in parentheses because then it is easier to see them as distinct factors)
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www.jamesbrennan.org/algebra/rational/simplifying_ratio...
www.jamesbrennan.org/algebra/rational/simplifying_rational_expressions.htm
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This means that when we are talking about rational expressions we can no longer say that the variable represents “any real number.” Certain values may have to be excluded. For example, in the expression...
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www.jamesbrennan.org/algebra/rational/rational_expressi...
www.jamesbrennan.org/algebra/rational/rational_expression_definition.htm
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A short summary of 's Rational Expressions. This free synopsis covers all the crucial plot points of Rational Expressions. ... The second section explains how to add and subtract rational expressions. The process by which we add and subtract rational expressions is similar to the process by which we add and subtract...
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www.sparknotes.com/math/algebra2/rationalexpressions/su...
www.sparknotes.com/math/algebra2/rationalexpressions/summary.html
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College AlgebraSimplifying Rational Expressions ... Anyway, over the next several tutorials we will be showing you several aspects of rational expressions (fractions). In this section we will be simplifying them. Again, we will be putting your knowledge of factoring to the test.
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www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebr...
www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebra/col_alg_tut8_simrat.htm
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College AlgebraMultiplying and Dividing Rational Expressions ... In this tutorial I will be stepping you through how to multiply and divide rational expressions. A lot of times in math you are having to use past concepts to be able to work all the way through the new problems.
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www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebr...
www.wtamu.edu/academic/anns/mps/math/mathlab/col_algebra/col_alg_tut9_mulrat.htm
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6.1 Rational Expressions and Functions; Multiplication and Division; 6.2 Addition and Subtraction of Rational Expressions; 6.3 Complex Fractions; 6.4 Equations Involving Rational Expressions Summary Exercises on Operations and Equations Involving Rational Expressions;
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www.mathnotes.com/intermediate/aw_interchap6.html
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