Using the digits from $1$ to $9$,
- Form four numbers, such as ($X$,$Y$,$Z$,$T$)
- Then take $X\div Y$ and $Z\div T$ where both values should be different than each other.
- You need to use all digits from $1$ to $9$ but once, such as ($923\div 85$,$67\div 41$)
What is the smallest difference between these two values?