You wont accomplish anything in music if you think about it so mathematically. Now, I am looking at the sheetmusic, and it reminds me of the first time I encountered this sort of thing in Debussy's 1st arabesque. First, learn each hand separately. Now, on the 4th quarterbeat of the troubles some 3rd bar, take note that the Bb of the RH and Bb of the LH match up. on the next bar, the F of the RH matches up with the Bb of the LH.
Now the hard part- Start to practice playing both hands together. It's ok to play quickly here- Only focus on getting from the pair of matched up notes to the other pair. Play it as if you are playing hands separately- not caring about what matches up with what.
When you finally find yourself starting and ending where you are supposed to, it is time to play it slowly. Note that in the sequence, the RH is playing only slightly slower than if the notes were 16th notes. Does that make sense?
I hope you come out of it alive!

donjuan