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分子:分數值=分母(一定),成正比例
根據分數與除法的關係,知道分子相當於被除數,分母相當於除數,分數值相當於商,故被除數=商×除數,得出分數值×分母=分子(一定),所以,分子一定,分母和分數值成反比例;故答案為:√.
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