第1个回答 2016-07-09
2/3-1/4
=8/12-3/12
=5/12本回答被提问者和网友采纳
=8/12-3/12
=5/12本回答被提问者和网友采纳
第2个回答 2023-03-06
2/3-1/4
=8/12-3/12
=5/12
=8/12-3/12
=5/12
第3个回答 2016-07-09
2/3 -1/4
=(8-3)/12
=5/12
=(8-3)/12
=5/12
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