Can we mix KnockoutJs and EmberJs in our application?

I have couple of pages written in KnockoutJs and I want to add these 4 pages to the application which is written in Emberjs+HandlebarsJs. Can we do this? KnockoutJs is based on MVVM pattern, EmberJs is based on MVC. So is my idea right? Can we do this at all? It will be great if I can get answer with explanation.