1-1/2-1/4-1/8-1/16-1/32-1/64简便计算
问题描述:
1-1/2-1/4-1/8-1/16-1/32-1/64简便计算
答
1-1/2-1/4-1/8-1/16-1/32-1/64
=1-(1/2+1/4+1/8+1/16+1/32+1/64)
=1-(32/64+16/64+8/64+4/64+2/64+1/64)
=1-63/64
=1/64