10JJ-159题

ninaluan

159） Which one is closest to the sum of the recipocal from 43 to 48?
a 1/6; b 1/8. I chose 1/8.
答案: 1/8
请问1/8怎么来的？

Sinoboy

1/43+1/44+1/45+1/46+1/47+1/48 < 1/40+1/40+1/40+1/40+1/40+1/40=1/8