Given a proposal by the national legislature to amend the articles of confederation, the approval of how many of the state legislatures would be necessary to ratify the amendment?

two thirds of both Houses

Explanation:

Since the ratification of the American constitution in 1789, there has been stipulated processes contained in its article V, on how the constitution would be amended anytime in the future. The article stipulates that two-third of both houses shall agree for the amendment of the constitution to take place, or the two thirds of the legislatures of several states. There has been over 27 amendments since the inception of these process.

Amendments must be approved by  3/4  of the state legislatures.

I think this is right but the first guy is right im not sure