The electric guitarist's best friend is the minor pentatonic! Most electric players can play the shape, but do you understand the theory behind it?
As we previously established, the pentatonic scales pull 5 notes from the 7 note major / minor scales. In the case of minor pentatonic, we take our full minor scale and remove the 2nd and 6th notes. Our first step, therefore, is to convert the major scale to minor, which you can do by flattening the 3rd, 6th and 7th... as shown here:
Once we have the minor scale, we remove the 2nd and 6th notes to give us the formula . When applied to the C minor scale, you will create a C minor pentatonic scale, as shown here:
To help you put this into practice, here is a common shape for the minor pentatonic in the key of C minor (as per the example above). Notice the notes on the neck as you go through it, trying to say the degrees of the scale (i.e. 1st, b3rd, 4th etc...).