(-4又2/3)-(-3又1/3)-(-6又1/2)=-201/12【对吗?】-1/2-(-2又1/3)+2又3/4-7/8-3又2/3=-111/24【?】

(-4又2/3)-(-3又1/3)-(-6又1/2)=-201/12【对吗?】-1/2-(-2又1/3)+2又3/4-7/8-3又2/3=-111/24【?】
(-4又2/3)-(-3又1/3)-(-6又1/2)=-201/12【对吗?】
-1/2-(-2又1/3)+2又3/4-7/8-3又2/3=-111/24【?】

(-4又2/3)-(-3又1/3)-(-6又1/2)=-201/12【对吗?】-1/2-(-2又1/3)+2又3/4-7/8-3又2/3=-111/24【?】
(-4又2/3)-(-3又1/3)-(-6又1/2)
=-14/3+10/3+13/2
=-4/3+13/2
=-8/6+39/6
=31/6
-1/2-(-2又1/3)+2又3/4-7/8-3又2/3
=-1/2+7/3+11/4-7/8-11/3
=(-4/8+22/8-7/8)+(7/3-11/3)
=11/8-4/3
=(33-32)/24
=1/24