1/2+1/4+1/8+1/16+1/32(简算)
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![1/2+1/4+1/8+1/16+1/32(简算)](/uploads/image/z/247262-14-2.jpg?t=1%2F2%2B1%2F4%2B1%2F8%2B1%2F16%2B1%2F32%28%E7%AE%80%E7%AE%97%29)
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1/2+1/4+1/8+1/16+1/32(简算)
1/2+1/4+1/8+1/16+1/32(简算)
1/2+1/4+1/8+1/16+1/32(简算)
=(1-1/2)+(1/2-1/4)+(1/4-1/8)+(1/8-1/16)+(1/16-1/31)
=1-1/32
=31/32
以32为分母
(16+8+4+2+1)/32=31/32