(1):1/2+(-2/3)+4/5+(-1/2)+(-1/3)=? (2):(-1.5)+17/4+2.75+(-11/2)=?完整解答啊啊啊啊啊啊啊啊啊啊!
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/23 13:33:20
(1):1/2+(-2/3)+4/5+(-1/2)+(-1/3)=?(2):(-1.5)+17/4+2.75+(-11/2)=?完整解答啊啊啊啊啊啊啊啊啊啊!(1):1/2+(-2/3)+4/5+(-
(1):1/2+(-2/3)+4/5+(-1/2)+(-1/3)=? (2):(-1.5)+17/4+2.75+(-11/2)=?完整解答啊啊啊啊啊啊啊啊啊啊!
(1):1/2+(-2/3)+4/5+(-1/2)+(-1/3)=? (2):(-1.5)+17/4+2.75+(-11/2)=?
完整解答啊啊啊啊啊啊啊啊啊啊!
(1):1/2+(-2/3)+4/5+(-1/2)+(-1/3)=? (2):(-1.5)+17/4+2.75+(-11/2)=?完整解答啊啊啊啊啊啊啊啊啊啊!
(1):1/2+(-2/3)+4/5+(-1/2)+(-1/3)=1/2-2/3+4/5-1/2-1/3
=4/5-2/3-1/3
=4/5-1
=﹣1/5
﹙2﹚(-1.5)+17/4+2.75+(-11/2)=﹣3/2+17/4+11/4-11/2
=﹙17/4+11/4﹚-﹙3/2+11/2﹚
=7-7
=0.
(2*3*4*5)*(1/2-1/3-1/4-1/5)
1.(1+1/2+1/3+1/4)*(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4)=2.(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4+1/5+1/6)-(1+1/2+1/3+1/4+1/5+1/6)*(1/2+1/3+1/4+1/5)=
0-(+2/1)-(+5/2)-(-4/3)-(+4/1)-(-5/3)
4×(-1/2²)-3/2×(-2/5)
5/9+(3/4-1/2)
4/5+(3/8-1/2)
计算2*3*4*5*(1/2-1/3+1/4-1/5)
1/2+(-2/3)-(-4/5)+(-1/2)-(+1/3)
(-1/4)+5/6+2/3-1/2
2/3,1,6/5,4/3,( ),3/2
(1+1/2+1/3+1/4)×(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)×(1/2+1/3+1/4)~
(1+1/2+1/3+1/4)乘以(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)乘以(1/2+1/3+1/4)简算
|-5 1/2|×(1/3-1/2)×3/11÷(1-1/4)
判断:1/4+2/5+3/5=1/4+(2/5+3/5)对错
(1/3+2/3)+(1/4+2/4+3/4)+(1/5+2/5+3/5+4/5)+.+(1/100+.99/100)=
一道奥数题,急救!(1+1/2+1/3+1/4)×(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)×(2+1/3+1/4)
1/2+(1/3+2/3)+(1/4+2/4+3/4)+(1/5+2/5+3/5+4/5)+.+(1/50+.+49/50)怎么解?
(5/2-2/3+1/4)*2/11是多少