﹣1/3+1又1/2-2又5/61又3/4-2又1/6+3又2/3
问题描述:
﹣1/3+1又1/2-2又5/6
1又3/4-2又1/6+3又2/3
答
(1)-1/3+3/2-17/6
=-2/6+9/6-17/6
=(-2+9-17)/6
=-10/6
=-5/3
(2)7/4-13/6+11/3
=21/12-26/12+44/12
=(21-26+44)/12
=39/12
=13/4