Put audio 23.976 fps to film 24 fps

Hello,

I have a problem to sync the audio into a film. I have Akira bluray, and recently I bought Akira 4k Steelbook from eeuu.

As I from Spain, I like to listen the films in Spanish, and as other times, I use this amazing tool to include other audio tracks.

The problem in this case is Akira 4k is in 24 fps, and the bluray version is in 23.976, so the question is, how I can sync the audio track (23.976) to the video image (24)? Is there a way to do it with precision? I mean, the film is more than 2 hours duration, I am worry if in some point the audio desync.

Thanks!!!