What was the purpose for "checks and balances" in the government?

so that the 3 branches if government can limit the power the other branches have. this way the power stays even for all 3 branche.

The system of checks and balances is intended to make sure that no branch or department of the federal government be allowed to exceed its bounds, to guard against fraud, and to allow for the timely correction of errors or omissions.

Explanation:

on my last question