(2*3*4*5)*(1/2-1/3-1/4-1/5)
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(2*3*4*5)*(1/2-1/3-1/4-1/5)(2*3*4*5)*(1/2-1/3-1/4-1/5)(2*3*4*5)*(1/2-1/3-1/4-1/5)(2*3*4*5)*(1/2-1/3-
(2*3*4*5)*(1/2-1/3-1/4-1/5)
(2*3*4*5)*(1/2-1/3-1/4-1/5)
(2*3*4*5)*(1/2-1/3-1/4-1/5)
(2*3*4*5)*(1/2-1/3-1/4-1/5)
=2*3*4*5*1/2-2*3*4*5*1/3-2*3*4*5*1/4-2*3*4*5*1/5
=3*4*5-2*4*5-2*3*5-2*3*4
=60-40-30-24
=-34
2*3*4*5(-1/2-1/3-1/4-1/5)=
2*3*4*5*(-1/2)-2*3*4*5/3-2*3*4*5/4-2*3*4*5/5)
=-3*4*5-2*4*5-2*3*5-2*3*4=-60-40-30-24=-154
望采纳
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)=
(2*3*4*5)*(1/2-1/3-1/4-1/5)
(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
计算2*3*4*5*(1/2-1/3+1/4-1/5)
|-5 1/2|×(1/3-1/2)×3/11÷(1-1/4)
2/3,1,6/5,4/3,( ),3/2
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+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(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)乘(1/2+1/3+1/4)
1/2+(-2/3)-(-4/5)+(-1/2)-(+1/3)
5/9+(3/4-1/2)
4/5+(3/8-1/2)
0-(+2/1)-(+5/2)-(-4/3)-(+4/1)-(-5/3)
简便运算题(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+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)如何简算(或计算)求帮忙
小学数学题(不许复制)[1+2/1+3/1+4/1]x[2/1+3/1+4/1+5/1]-[1+2/1+3/1+4/1+5/1]x[2/1+3/1+4/1]
(-2/3)+1/2+4/5+(-1/2)+(-1/3)