用asp.net mvc项目组合asp.net aspx页面

I have two separate projects. One is my web application that has written in ASP.NET MVC. The other one is an ASP.NET application with .aspx pages that is a blog for my web application. Currently I use a subdomain for blog and web application itself is running on main domain. But for SEO purposes I want my blog to run on a route like maindomain.com/blog. To achieve this I want to add a new route in my mvc project named /blog and when a user navigate to this route could visit the blog. What is the best practice to do this? Consider that the code base of these two projects are rather big and have two separate connection strings and I prefer not to merge them. Thanks in advance.I have two separate projects. One is my web app