-1又2分之1+1又3分之1+(-5/6)=?②3又2分之1+|-2又4分之1|+（-1/3）-0.25+|+1/6|=

-1又2分之1+1又3分之1+(-5/6)
=-3/2+4/3-5/6
=-9/6+8/6-5/6
=-6/6
=-1
3又2分之1+|-2又4分之1|+（-1/3）-0.25+|+1/6|=
=7/2+9/4-1/3-1/4+1/6
=9/4-1/4+7/2-1/3+1/6
=2+21/6-2/6+1/6
=2+10/3
=16/3
=5又3分之1