Muslim-Sisters shares an interesting story about caliph Ali, radiallahu ‘anhu. Get your calculators ready!

Once two persons sat down to eat. One had five loaves of bread while another had three. Meanwhile, a third person came and they invited him to eat with them. When the third person was about to leave, he gave them eight dirhams for what he had eaten. After he left the scene, a dispute arose over the division of the eight dirhams. The man with five loaves of bread claimed five dirhams for himself and three dirhams for his partner. The person who had three loaves of bread insisted on half the amount,i.e, four dirhams. This dispute became so intense that they took the matter to Ali [radiallahu 'anhu] who was the Khalifa at that time… [continued here]