Answer
$\frac{6}{36}$ or $\frac{1}{6}$
Work Step by Step
These are the possible pairs of two dice which add up to 7:
(1&6), (2&5), (3&4), (4&3), (5&2), (6&1) = 6 pairs
There are 36 total combinations for dice.
Thus, the probability that the sum of the two dice is 7 is $\frac{6}{36}$ or $\frac{1}{6}$