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9/7/(4/5-1/3)+1/3/5/14怎么写
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【9/7/(4/5-1/3)+1/3】/5/14怎么写
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答案和解析
[9/7/(4/5-1/3)+1/3]/5/14
=[9/7/(15/12-15/5)/5/14
=[9/7/15/7]/14/5
=[9/7*7/15]/14/5
=3/5/14/5
=3/5*5/14
=3/14
=[9/7/(15/12-15/5)/5/14
=[9/7/15/7]/14/5
=[9/7*7/15]/14/5
=3/5/14/5
=3/5*5/14
=3/14
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