Adding and Subtracting Rational Expressions - Problem 4 642 views
If two fractions are to be combined, they must first have the same denominator. These examples already have common denominators, so we will be focusing on how to properly combine the numerators, factor, and reduce if possible. Many errors are made with subtracting, so be very careful with distributing a negative sign. Domain restrictions are any x values that would make the denominator equal to zero.
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