The excerpt from Article V of the United States Constitution outlines the process for amending the Constitution, stating that amendments can be proposed either by a two-thirds majority in both Houses of Congress or by a convention called for by two-thirds of the state legislatures. Furthermore, it specifies that any amendments must be ratified by three-fourths of the state legislatures or conventions.
A better summary would be: "Amendments to the Constitution can be proposed by two-thirds of Congress or by a convention called by two-thirds of the states, and must be ratified by three-fourths of the states."