100/1+100/2+100/3+.+100/199等于多少?
问题描述:
100/1+100/2+100/3+.+100/199等于多少?
答
100/1+100/2+100/3+.+100/199=(1+2+3+---+199)/100=199X100/100=199
100/1+100/2+100/3+.+100/199等于多少?
100/1+100/2+100/3+.+100/199=(1+2+3+---+199)/100=199X100/100=199