计算:1/2+3/4+7/8+15/16+31/32+63/64=?
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计算:1/2+3/4+7/8+15/16+31/32+63/64=?
![计算:1/2+3/4+7/8+15/16+31/32+63/64=?](/uploads/image/z/7418485-37-5.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A1%2F2%2B3%2F4%2B7%2F8%2B15%2F16%2B31%2F32%2B63%2F64%3D%3F)
=1-1/2+1-1/4+1-1/8+1-1/16+1-1/32+1-1/64
=6-(1/2+1/4+1/8+1/16+1/32+1/64)
=6-63/64
=5+1/64
=6-(1/2+1/4+1/8+1/16+1/32+1/64)
=6-63/64
=5+1/64
如何计算1/2+3/4+7/8+15/16+31/32+63/64+127/128怎么简便计算?
计算:1/2+3/4+7/8+15/16+31/32+63/64=?
计算:1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256+511/512【要计算
简便计算:1/2+3/4+7/8+15/16+31/32+63/64+127+218
简便计算:1/2+3/4+7/8+15/16+31/32+63/64+127/218
1/2+3/4+7/8+15/16+31/32+63/64=127/128=?简便计算
2/1+4/3+8/7+16/15+32/31+64/63=?(用简便的方法计算)
1+1/2+3/4+7/8+15/16+31/32+63/64 简便计算,不通分.
计算 1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256
简便计算:1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256
1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256+511/512如何计算
不通分,这道题能简单计算吗1/2+3/4+7/8+15/16+31/32+63/64