25/17-1/3x9/8-5/8;1/5x27+3/5x41;1/4x39+3/4x27这几道题的简便算法
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![25/17-1/3x9/8-5/8;1/5x27+3/5x41;1/4x39+3/4x27这几道题的简便算法](/uploads/image/z/757661-5-1.jpg?t=25%2F17-1%2F3x9%2F8-5%2F8%3B1%2F5x27%2B3%2F5x41%3B1%2F4x39%2B3%2F4x27%E8%BF%99%E5%87%A0%E9%81%93%E9%A2%98%E7%9A%84%E7%AE%80%E4%BE%BF%E7%AE%97%E6%B3%95)
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