What is the 3/5 compromise? The compromise was proposed by James Maddison to count slaves as three fifths of a person and not a whole person. “After a bitter debate, Madison proposed a compromise. Count each enslaved person as three-fifths of a person, he suggested, when determining a state's population for representation in the House of Representatives”(Teachers' Curriculum).Due to the south having several times more slaves than the north. Which caused the southern voting power to be higher than the south. Causing the convention to start to crumble due to the south being angry with this because they thought this was the first step to outlaw slavery. Which influenced the south that the convention might also tax there’s crops, having been all