It can be done by using npx command that downloads and runs the package without installing it.
npx @angular/cli@9 new my-project creates a new folder
my-project in the current folder and puts a new project here using angular version 9. The local version of
@angular/cli in this case will be the same as used in
npx command so you can just continue working.
The syntax of the command is as follows
npx @angular/cli@<package version> new <project-name>.