(-3又1⼀3)-(+1⼀2)+(4又3⼀4)-(-1又2⼀3)=

2024-12-13 00:03:28
推荐回答(1个)
回答1:

(-3又1/3)-(+1/2)+(4又3/4)-(-1又2/3)
=[(-3又1/3)+(1又2/3)]+[(4又3/4)-(2分之1)]
=(-3分之5)+4分之17
=12分之31
-2(+7/12)+(-7/15)-(-1/3)+(-1又1/6)
=-2(+35/60)+(-28/60)+20/60+(-70/60)
=-2+(-43/60)
=(-163/60)
(-47/8)-(5又1/5)+(4又1/4)-(+3又1/8)
= [(-47/8)-25/8] -(5又1/5)+(4又1/4)
=(-9)-5分之26+4分之17
=(-9)-20分之104+20分之85
=(-199/20)
(-1)+(+2)-(-3)-(-4)
=(-1)+2+3+4
=8