Since it is divided equally, then Party A, Party B and Party C each eat 8/3 loaves, and Party C should pay 6.4 yuan for 8/3 loaves. From 6.4/(8/3)=2.4 yuan/article.

A bought 5 loaves of bread, but he ate 8/3 loaves, 5-8/3=7/3.

2.4*(7/3)=5.6 yuan is the money that A should recover.

Similarly, the money that B should recover is

3-8/3 * 2.4 = 0.8 yuan