`1` `-`  `( 2/3 + 1/6 )`

`=>` `1` `-` `(4/6 + 1/6)`

`=>` `1` `-` `5/6`

`=>` `6/6` `-` `5/6`

`=>` `1/6`

`@``tenchunick`

`#``hoidap247`