Converting dual sink to single sink

[kenjiiwamiya]

I purchased a new single drain sink to replace an old dual drain sink that came with the house built 30 years ago.
Currently, there's a 3 way drain extension with 2 of the forks going to p traps with the middle fork being plugged with a clean out cap.

would I need to somehow remove or cut this three way out in order to connect it to a single p trap, or is there something I can use to simply cap off one side?

 

[TomFOhio]

You can cap off the side that you don't want to use. They make a slip nut cap. The pipe comes out and the cap goes
under the nut.