Turn a piece of tile over so the paper backing faces up. Position that tile where you will install it and line up the tile so it's straight with the other tiles you've installed.
Mark the paper backing on both the left side and the right side where you need to make your cut, using a marker.
Connect the two markings, using a ruler, and cut the laminate tile in a straight line along the edge of your ruler, using a razor blade.
Slide the razor blade along the laminate tile where you need to make your cuts multiple times until you cut through the tile.
Peel the paper backing off your tile and adhere it to the floor to lay your cut tile in position.