-1/8-(+1又1/3)+(3又3/4)-(-5/8)-(+4又2/3)
=-1/8-1-1/3+3+3/4+5/8-4-2/3
=-1/8+5/8-1/3-2/3+3/4-2
=2/4+3/4-1-2
=5/4-3
=-7/12
-1.5+2.25-1/2-1/4
=-1.5+2.25-0.5-0.25
=-1.5-0.5+2.25-0.25
=-2+2
=0
-1/8-(+1又1/3)+(3又3/4)-(-5/8)-(+4又2/3)
=-1/8-1-1/3+3+3/4+5/8-4-2/3
=-1/8+5/8-1/3-2/3+3/4-2
=2/4+3/4-1-2
=5/4-3
=-7/12
-1.5+2.25-1/2-1/4
=-1.5+2.25-0.5-0.25
=-1.5-0.5+2.25-0.25
=-2+2
=0