1/12
The possibility of rolling a 2 is 1/6, since there is one option out of 6.
The possibility of rolling an odd number is 3/6, or 1/2, since half of the numbers are odd.
Multiply these two together by multiplying the numerators together and multiplying the denominators together.
(1 * 1) / (6 * 2)
1 / (6 * 2)
1/12
