1-1/2+1/3-1/4+1/5-1/6+1/7.-1/50=?

1-1/2+1/3-1/4+1/5-1/6+1/7.-1/50=?
1-1/2+1/3-1/4+1/5-1/6+1/7.-1/50=?

1-1/2+1/3-1/4+1/5-1/6+1/7.-1/50=?
这不是埃及分数吗?
就是等于1-1/50=49/50
小学4年级的奥赛