What is the most common way amendments to the US Constitution have been ratified?
All but one Amendment to the US Constitution has been ratified by state legislatures (3/4 of the states must vote to ratify). The 21st Amendment, which repealed the 18th, was ratified by conventions in the states rather than the legislatures. Congress chose this method primarily because it was thought that state legislatures could be influenced or intimidated by Temperance Movements to vote against the Amendment, which repealed Prohibition of alcoholic beverages in the US.
A total of 33 amendments have been made to the US constitution since approval of Constitution in March 4, 1789.A total of 27 amendments have been ratified and 6 are still pending ratification. The oldest un-ratified amendment dates back to September 25, 1789 which is still pending. Ratified amendments are permanent changes to constitution.
The United States Constitution was written in 1787 and ratified in 1788. It has 27 amendments, but the first 10 were ratified simultaneously in 1791 so it was amended one time with ten amendments. The other 17 amendments were ratified one at a time. So the US Constitution has 27 amendments but has been amended 18 times.
There are 27 amendments to the US Constitution. However, only 17 of them qualify as "changes", because the first 10, collectively referred to as the "Bill of Rights", was ratified WITH the Constitution itself. Since the ratification of the Constitution and Bill of Rights, only 17 amendments have been ratified.