To say A out of B, you can use "B no uchi A"
number B (+ counter) no (something no) uchi number A (+counter).
e.g.
1 out of 3 games
3ゲームのうち1ゲーム 3 geemu no uchi 1 geemu
2 out of 9 apples
9個のりんごのうち2個(のりんご) 9 ko no ringo no uchi 2 ko (no ringo)
You can also say
りんご9個のうち2個 ringo 9 ko no uchi 2 ko
or
りんごここのつのうちふたつ ringo kokonotsu no uchi futatsu
2 persons out of 100
100人のうちふたり 100 nin no uchi futari