1/2+1/4+1/8+1/16+32/1+1/128没有1/64简算

问题描述:

1/2+1/4+1/8+1/16+32/1+1/128没有1/64简算

=1/2+1/4+1/8+1/16+1/32+1/32-1/32+1/128
=1-1/32+1/128
=1-4/128+1/128
=1-3/128
=125/128