3/2+7/6+13/12+.+9901/9900怎么算
问题描述:
3/2+7/6+13/12+.+9901/9900
怎么算
答
3/2+7/6+13/12+.+9901/9900
=1+1/2+1+1/6+1+1/12……+1+1/9900
=99+(1-1/2+1/2-1/3+1/3-……+1/99-1/100)
=99+(1-1/100)
=99.99