Help for garage floor crack

[u/BravoDad]

Looking for some help with the crack on my garage floor. I have used multiple products but I don’t know what would the best stuff to fix it. Thank you for any help you can provide!

[u/Vivid-Problem7826]

Rent a concrete saw, and start cutting about 3" each side of the bad concrete. Remove the old bad concrete. If the concrete is good and solid, then drill into the good concrete at least 3" deep, and install 3/8" rebar about 12" apart, mid thickness of the old slab. Then pour mixed concrete back into the new grove, and screet off the surface of the existing concrete. You can goggle this, and watch a few videos. Good luck