I'm no expert on tablets. (I've only owned one for a few weeks myself). However I would think that the first step would to be to export your family tree from Family Tree Maker to a file that can be recognised by other genealogy software. So follow the the 'GEDCOM 5.5' instructions here:
http://ftm.custhelp.com/app/answers/detail/a_id/4376/~/exporting-a-file-in-family-tree-maker
To get the file onto your tablet you'll either need to save it to a pen drive (and then connect that pen drive to the tablet) or email it to yourself and access your email from the tablet.
Then you'll need a genealogy app on your tablet that can open that file. One of these should do the trick
https://play.google.com/store/search?q=genealogy&c=apps
but I'll leave it to you to plough through the descriptions to find a suitable app.
OK, it's not a complete answer but I hope that it points you in the right direction.