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Mathematics 16 Online
OpenStudy (anonymous):

studying for a test!!! please help!!! How do you add or subtract rational expressions when they have UN-like denominators?

jimthompson5910 (jim_thompson5910):

the denominators must be the same, so you have to get them to be the same normally you would get them equal to the LCD once the two denominators are equal to the LCD, you can add/subtract as described before

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