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通分\( \frac{3}{2{a}^{2}b}\)与\( \frac{a-b}{a{b}^{2}c}\)
参考答案:\( \frac{3bc}{2{a}^{2}{b}^{2}c}\)与\( \frac{2{a}^{2}-2ab}{2{a}^{2}{b}^{2}c}\)
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