`2/3 + 2/6 + 2/12 + 2/24 + 2/48 + 2/96 + 2/192`

`= 2/3 + 1/3 + 1/6 + 1/12 + 1/24 + 1/48 + 1/96`

`= (2/3 + 1/3) + 1/6 + 1/12 + 1/24 + 1/48 + 1/96`

`= 1 + 1/6 + 1/12 + 1/24 + 1/48 + 1/96`

`= 7/6 + 1/12 + 1/24 + 1/48 + 1/96`

`= 5/4 + 1/24 + 1/48 + 1/96`

`= 31/24 + 1/48 + 1/96`

`= 21/16 + 1/96 `

`= 127/96`