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More adding and subtracting mixed numbers. How do you fix a unlike denominator?

More adding and subtracting mixed numbers. How do you fix a unlike denominator?-example-1
User Rphlmr
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2 Answers

6 votes
I'll give you 14A the denominator will be 12. So do 20/12+17/12+57/12=7 5/6.
User Jpskgc
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You must multiply both demonization by the least common factors to get the same anwser
User Sebastian Brandes
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