(-3又1/3)-(+1/2)+(4又3/4)-(-1又2/3) (写出计算过程) -2-(+7/12)+(-7/15)-(-1/3)+(-1又1/6)

如题所述

第1个回答  2012-09-17
(-3又1/3)-(+1/2)+(4又3/4)-(-1又2/3)
=-10/3-1/2+19/4+5/3
=-40/12-6/12+57/12+20/12
=-46/12+77/12
=31/12
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