


Rational FunctionsAddition/SubtractionAddition and subtraction of fractions with the same denominator is easy. Just add or subtract the numerators. and Example
ExerciseIn general, we multiply the denominators of two given fractions and use it as a common denominator: and ExampleExerciseWhen the denominators of two given fractions have a common factor, we could use a common denominator with smaller degree; namely the LCM. ExampleExercise
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