Example:
Key of "A"

Minor Pentatonic
1(A) b3(C) 4(D) 5(E) b7(G) 1(A)

Major Pentatonic
1(A) 2(B) 3(C#) 5(E) 6(F#) 1(A)

Here's the tip...
Put these two scales together and include the b5
1(A) 2(B) b3(C) 3(C#) 4(D) b5(D#) 5(E) 6(F#) b7(G) 1(A)

blues power,
"Missippy" James