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分數乘整數的意義與整數乘法的意義相同,都是求幾個相同加數的和的簡便運算. 一個數乘分數的意義與整數乘法的意義不同,它表示求這個數的幾分之幾. 分數除法的意義與整數除法的意義相同,表示已知兩個因數的積與其中一個因數,求另一個因數的運算. 基本相同的 採納吧
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