Why was the three-fifths compromise necessary?

The Three-Fifths Compromise defined the process for states to allow them to count slaves as part of the population to establish representation and taxation for the federal government.

Explanation:

The Southern states wanted to count all slaves toward the population for representation purposes but did not want to be taxed because of the slaves as the Southern states considered them property.

However, the Northern states did not want all the slaves to be counted  toward the population because that would take representation away from the North.  

were at first enthusiastic in support of the revolution. however, over time divisions of opinion became apparent between federalists and anti-federalists

health care plans in the united states having high costs because they are focusing on providing quality programs for different groups of individuals. the quality of the service is based on money flow received from the members. without this investment, couldn't be possible a constant scientific searching to prevent death and illness caused because of low levels of health investigation. currently, the complaints are not about the highest cost, but about the coverage and benefits to access the necessary health services required by the members.  

besides, if a global health system is established the quality levels will fall down because of the standardized of the health. the access to care will increase but the quality will be low because it depends on the money invested.