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(3-1/2) x (2-1/4) = (7/2) x (9/4) = 63/8 = 7-7/8

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Another approach:

3-1/2 = 3.5

2-1/4 = 2.25

(3.5) x (2.25) = 7.875 = 7-7/8

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16y ago

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