Final answer:
The Articles of Confederation were replaced with the Constitution to strengthen the central government and improve economic stability.
Step-by-step explanation:
The Articles of Confederation were replaced with the Constitution mainly to strengthen the central government and improve economic stability. The Articles of Confederation, which created a weak central government with limited powers, proved to be ineffective in addressing the economic and political challenges faced by the newly formed United States. With the Constitution, a stronger central government was established, providing the necessary framework for effective governance and economic stability.