【2又4/5+(3又2/3-2.75)/1又5/6】/3又1/5

如题所述

【2又4/5+(3又2/3-2.75)/1又5/6】/3又1/5
=【2又4/5+(2/3+1/4)/11/6】/16/5
=【2又4/5+(11/12)*(6/11)】/16/5
=【14/5+1/2】/16/5
=(33/10)*(5/16)
=33/32
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第1个回答  2013-03-07
【2又4/5+(3又2/3-2.75)/1又5/6】/3又1/5
=【2又4/5+(2/3+1/4)/11/6】/16/5
=【2又4/5+(11/12)*(6/11)】/16/5
=【14/5+1/2】/16/5
=(33/10)*(5/16)
=33/32