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3 and one half = 7/2. To add or subtract fractions requires that they be converted to fractions with the same denominator. 7/2 = 21/6 and 2/3 = 4/6; 21/6 - 4/6 = 17/6. If the problem is interpreted to mean (2/3)(7/2), this product is 14/6 = 7/3.

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15y ago

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