Here is the A minor pentatonic scale shape. The root note (R) will always be A or whatever key you are in. This is the most commonly used scale shape for the minor pentatonic scale. Use these notes to improvise over the backing track in A minor. It’s very easy!
By putting any scale in a musical context you will enjoy learning scales whilst learning to improvise at the same time.
If the blues is not to your taste, feel free to use any other backing track in A minor.