"Minder dan vijf jurken"
Translation:Fewer than five dresses
Yes, but not as a good English translation when referring to something that is counted or countable. So minder dan vijf jurken - fewer than five dresses, but minder brood - less bread. You wouldn't say "fewer bread", and you wouldn't (well, shouldn't, though this rule seems to be broken more often than not in north America these days) say "less than five dresses".