Normally we look at scales going from the sixth string to the 1st. The 6th string being the thickest (Low E) and the 1st being the smallest (High E).

With that in mind...

A Major Pentatonic Starting on the 6th string

Notes : A - B - C# - E - F#


E|--------------------------5-7-
B|-----------------------5-7----
G|-------------------4-6--------
D|---------------4-7------------
A|-----------4-7----------------
E|------5-7---------------------



A Major Pentatonic Starting on the 5th string

Notes : A - B - C# - E - F#


E|-------------------------------12-14-
B|------------------------12-14--------
G|-----------------11-14---------------
D|-----------11-14---------------------
A|-----12-14---------------------------
E|-------------------------------------