The first number is the actual score (the runs). The second number indicates how many batters were out trying to get that score (you can lose a maximum of 10 batsmen after which your team can no longer bat). So for the purposes of determining the winner you can ignore the second number, but it reveals probably how exciting the game must have been, etc.

For example, if India had got 160/1 chasing Pakistan's 159/8, you know that Pakistan never really managed to get many Indians out (only one), so it was easy for India. Here it's more of a parity with India getting 8 Pakistani batters out and Pakistan getting 6.

But of course nothing can tell the whole story as just watching the game - you normally feel a 3-1 victory was easier than a 1-0 victory in football in general, but it could've been a late-stage comeback from 0-1 to 3-1, etc., which you wouldn't know unless you watched the game.

Edit: Also don't mind the downvotes. We don't learn without asking.