What was the "Three$-$fifths Compromise"?

For apportionment purposes, slaves would count as $\frac{3}{5}$ of a person.

When amending the Constitution, $\frac{3}{5}$ of the states would be required to ratify before becoming law.

In the U$.$S$.$ Census count every $10$ years, children under $10$ were counted a $\frac{3}{5}$ of an adult.

Originally, the Constitution stated that a person must receive at least $\frac{3}{5}$ of the popular vote to be elected president.