Basement floor cracks are serious. They signalize that your basement foundation floor is under a lot of destructive stress. The cracks are a reaction to something happening on the other side of your wall or floor in your basement. Ignoring them is like ignoring a fire alarm which indeed such as ignorant thing. Although floor cracks are not as detrimental typically to your foundation as wall cracks, they provide an entrance for the pressure of hydrostatic water from below to come through and flood your basement.
The most typical crack is started near a wall and then branches out from there. The starting point of the crack is generally indicating the area where the foundation stress is high or where the floor was weakened. You may also want to see many cracks over a larger area. This is called honeycombing and it does indicate upward pressure trying to erupt up through your basement floor.
12 Photos Gallery of: Easy Basement Floor Cracks Ideas
Easy fixing the cracks themselves is not as important as solving the problem. They are causing the cracks in the first place. Just remove the water pressure under the basement floor and typically the cracks will not get any worse. Those that were leaking will stop leaking. It is definitely the easy way.