Answer:The answer is 2/3 percentage of both the house of congress must approve a proposed Constitutional amendment for it to be considered for ratification.
Explanation:
- Two out of three of both house of congress should pass a proposed constitutional amendment.
- For ratification of the proposed amendment the amendment is sent to the state.
- Convention must be called by the congress for proposing the amendment upon application of the legislature of thirty four out of the total fifty states.