"Your letter is shorter than mine!"

Translation: Scrisoarea ta este mai scurtă decât a mea!

[BucharestR]

Both are correct .. Need to edit this section.

[Dina865222]

Shouldn't be both correct : decât and ca?

[Sofi966016]

Decat is to compare and ca is to mean equality

[Alex341225]

What's actually the fine difference between este and e? Never really understood it...

[relox84]

There is no difference: este = e = is

e is simply a shorter way of saying este.