I have this crack in tiles on kitchen floor, can someone advise me on how to fix it please.
Hi @Les4,
Welcome to the Bunnings Workshop community, it is fantastic to have you with us.
Unfortunately, the only way to truly fix the issues is to replace the tile. If you have a spare tile that you can replace it with, I would be happy to advise a method to replace it.
If you are just looking for an aesthetic repair, due to the hairline nature of the crack, your options are also fairly limited. I'd have a look at the technique @prettyliving described in How to improve appearance of cracked kitchen tiles?
You could grab a paint sample pot in the closest colour you can find and rub it into the crack.
Let me know what you think and if you have further questions, please don't hesitate to ask.
Jacob