A six-sided number cube is tossed and a coin is flipped.

The sample space is {1H, 2H, 3H, 4H, 5H, 6H, 1T, 2T, 3T, 4T, 5T, 6T}.


What is the probability of rolling a multiple of 3 and flipping heads?


Enter your answer, as a fraction in simplest form, in the box.