I'm playing a lot of Minecraft and I'm fishing a lot. Now I have a fishing rod with luck of the sea 2 and another with bait 3.
I considered whether I should make her an angel on the anvil. But is that really smart?
I thought then with the luck of the sea I will get angel nut fish because bait 3 is on top.
Of course, this makes sense insofar as you can afford it from the levels.
From the levels it will soon start.
Bait just means that something bites much faster. Whether this is a fish, a shoe, a saddle or something else, bait has nothing to do with it (in contrast to the luck of the sea).
Therefore: yes, combine them!
You will fish faster, and more valuable items.