Question

计算 2/3+1/6+1/12+1/24+1/48+1/96+1/192

Answer 1

2/3+1/6=5/6

5/6=1/12=11/12

11/12+1/24=23/24

…………

2/3+1/6+1/12+1/24+1/48+1/96+1/192 =191/192