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First, you must find their lowest common denominator (often by multiplying one denominator by the other), then complete the addition, and lastly, bring the answer to lowest terms as shown below.

3/4 + 1/3 = 9/12 + 4/12 = 13/12 = 1 and 1/12

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14y ago
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Q: How do you complete the sum 3 quarters plus 1 third?
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