K/D ratio is basically the Kill/Death ratio. If you play 10 games, kill 10 enemies and also get killed 5 times i.e 10/5, the K/D ratio will be 2 for this case.
In this brief guide, you will learn how to increase the K/D ratio in the game.
You will need to drop yourself on the hot drops. These are the spots where most of the players drop, so you will have the chance to kill more opponents.
If you drop yourself on other locations with the least number of enemies, you will not get more kills there and you will not be able to increase the K/D ratio.
The player with lower K/D ratio can kill the player with a higher K/D ratio, depending on the skills and luck also.