1/2+(-2/3)-(-4/5)+(-1/2)=?10/3+(-11/4)-(-5/6)+(-7/12)=?
问题描述:
1/2+(-2/3)-(-4/5)+(-1/2)=?10/3+(-11/4)-(-5/6)+(-7/12)=?
求几个题啊
答
2/15 5/6
1/2+(-2/3)-(-4/5)+(-1/2)=?10/3+(-11/4)-(-5/6)+(-7/12)=?
求几个题啊
2/15 5/6