1/3+1/6+1/12+1/24+1/48+1/96简便计算
问题描述：
1/3+1/6+1/12+1/24+1/48+1/96简便计算
答
1/3+1/6+1/12+1/24+1/48+1/96
=1/3+1/6+1/12+1/24+1/48+1/96+1/96-1/96
=1/3+1/6+1/12+1/24+1/48+1/48-1/96
=1/3+1/6+1/12+1/24+1/24-1/96
=1/3+1/6+1/12+1/12-1/96
=1/3+1/6+1/6-1/96
=1/3+1/3-1/96
=2/3-1/96
=64/96-1/96
=63/96
=21/32
答
1240*3.4+1.24*2300+12.4*430 =1240*3.4+1.24*1000*2.3+12.4*100*4.3 =1240*3.4+1240*2.3+1240*4.3 =1240*(3.4+2.3+4.3) =
答
1/3+1/6+1/12+1/24+1/48+1/96
=1/3+1/2-1/3+1/3-1/4+1/4*1/2-1/6*1/2+1/6*1/2-1/8*1/2+1/8*1/4-1/12*1/4
=5/6+7/96
=87/96