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OpenStudy (anonymous):
Match each of the addition expressions with its rule. 3/8 + 1/3 A. Subtract and the sum is positive -3/8 + -1/2 B. Add and the sum is positive. -5/6 + 1/2 C. Add and the sum is negative. 14/2 + -1/2 D. Subtract and the sum is negative.
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