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(-2005)+4000又3/4+(-2004又2/3)+(-1又1/2)
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人气:378 ℃ 时间:2020-04-20 19:29:23
解答
(-2005)+4000又3/4+(-2004又2/3)+(-1又1/2)
=(4000-2004-2005-1)+(3/4-2/3-1/2)
=0+9/12-8/12-6/12
=-5/12
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