Total * * * can have 6*6=36 results.
So the probability that the sum of the points on two upward faces is 7 is 6/36= 1/6.
All possible scenarios:
Dice 1 is 1, and dice 2 is 6.
Dice 1 is 2, and dice 2 is 5.
Dice 1 is 3, and dice 2 is 4.
Dice 1 is 4, and dice 2 is 3.
Dice 1 is 5, and dice 2 is 2.
Dice 1 is 6, and dice 2 is 1.