（8/1+24/1+48/1+80/1+120//1+168/1）*56（8/1+1/24+1/48+1/80+1/120+1/168）*56 上面打错了。。这道才对

来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 08:59:51
（8/1+24/1+48/1+80/1+120//1+168/1）*56（8/1+1/24+1/48+1/80+1/120+1/168）*56 上面打错了。。这道才对
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（8/1+24/1+48/1+80/1+120//1+168/1）*56（8/1+1/24+1/48+1/80+1/120+1/168）*56 上面打错了。。这道才对
（8/1+24/1+48/1+80/1+120//1+168/1）*56
（8/1+1/24+1/48+1/80+1/120+1/168）*56 上面打错了。。这道才对

（8/1+24/1+48/1+80/1+120//1+168/1）*56（8/1+1/24+1/48+1/80+1/120+1/168）*56 上面打错了。。这道才对
(1/8+1/24+1/48+1/80+1/120+1/168)*56
=[1/(2*4)+1/(4*6)+1/(6*8)+1/(8*10)+1/(10*12)+1/(12*14)]*56
=1/2*(1/2-1/4+1/4-1/6+1/6-1/8+1/8-1/10+1/10-1/12+1/12-1/14)*56
=1/2*(1/2-1/14)*56
=12

2

是8分之一，还是8除于一？
那直接算不就行了吗？

129

12

1/8+1/24+1/48+1/80 1/8+1/24+1/48+1/80简便计算 (1/8+1/24+1/48+1/80+1/120+1/168+1/224)*64= (1/8+1/24+1/48+1/80+1/120+1/168+1/224)乘64 (1/8+1/24+1/48+1/80+1/120+1/168)简便计算 （1/8+1/24+1/48+1/80+1/120+1/168）乘以56 （8/1+24/1+48/1+80/1+120//1+168/1）*42 1/8+1/24+1/48+1/80+1/120+1/168 （1/8+1/24+1/48+1/80+1/120+1/168）*56 42x(8/1+24/1+48/1+80/1+120/1+168/1)=?求求 42X（1/8+1/24+1/48+1/80+1/120+1/168）求解 8分之1+24分之1+48分之1+80分之1+120分之1=? 8/1+24/1+48/1+80/1+120/1要过程 1/8+1/24+1/48+1/80+.+1/360 = 1/8+1/24+1/48+1/80……+1/2400=? 1/2+1/8+1/24+1/48+1/80要简便哦 1/2 +1/8+1/24+1/48+1/80怎么做 1/3+1/8+1/15+1/24+1/35+1/48+1/63+1/80+1/99怎么求