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統計: A(4), B(6), C(4), D(7), E(0) #236079

詳解 (共 1 筆)

#992156

原式=[38+(5/6)]-{[52+(3/8)]-[73+(1/8)]}-{-[(7)+(2/3)]-[8+(1/6)]}

        =[38+(5/6)]-[52+(3/8)]+[73+(1/8)]+[7+(2/3)]+[8+(1/6)]
        =75+(5/12)......D
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