Answer:
6 out of 13
Explanation:
All you have to do is find the multiples of 3 and 4.
3: 3, 6, 9, 12
4: 4, 8, 12
You will notice that both have twelve in there multiples so you can only count 1, and you are left with 6 numbers, therfore you are left with 6 out of 13 of the tiles are a multiples of 3 and 4.