Open Finder
Click Applications in the sidebar
Find the app you want to delete
Drag the app to the Trash
Or right-click the app and select Move to Trash
Enter your Mac password if prompted
Empty the Trash to permanently delete the app
If the app is open, quit it first before deleting
If the app came from the App Store, open Launchpad
Click and hold the app icon until it jiggles
Click the X button on the app icon if it appears
Confirm deletion if prompted