I would suggest searching
tablet from the main forum page.. There are several posts in regard to your question. I have attempted (minimally) to dual boot my Windows tablet..
Not certain if anyone has installed LL to an Android tablet and if so which make/model, CPU(hardware), rooted vs non-rooted etc etc..
You may want to google your tablet version along with Ubuntu scouting for successes noting process and trials... More so if wanting LL3.x series google Ubuntu 16.04 or 14.04 for the 2.x series..
Probably not the specific answer your looking for....