1/24+1/120+1/360+1/840的解法,请哪位哥哥,
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1/24+1/120+1/360+1/840的解法,请哪位哥哥,
1/24+1/120+1/360+1/840的解法,
请哪位哥哥,
1/24+1/120+1/360+1/840的解法,请哪位哥哥,
1/24+1/120+1/360+1/840=(1/24)(1+1/5+1/15+1/35)=(1/24)*(105+21+7+3)/105=(1/24)*(136/105)=17/315
没有别的好方法,只有通分!
1/24+1/120+1/360+1/840
=15/360+3/360+1/360+1/840
=19/360+1/840
=133/2520+3/2520
=17/315
这哪用什么解法呀!通分不就得了
1/24+1/120+1/360+1/840+1/630=?
简便计算:1/8+1/24+1/48+1/120
1/24+1/120+1/360+1/840的解法,请哪位哥哥,
1/8+1/24+1/48+1/80+.+1/360 =
1+3又1/8+5又1/24+7又1/48+9又1/80+11又1/120+13又1/168+15又1/224+17又1/288+19又1/360谁会?帮帮忙~~~~
1+3又1/8+5又1/24+7又1/48+9又1/80+11又1/120+13又1/168+15又1/224+17又1/288+19又1/360
(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
(31/360-1/18)/1/24
(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
42*(1/8+1/24+1/48+1/86+1/120+1/168) 简便方法
1+3/1/8+5/1/24+7/1/48+9/1/80+.+19/1/360怎样算