Can I use the same nutrients for lettuce and strawberrys?

[ttallos]

lettuce formula is 8-15-36 (1575ppm) and strawberry formula is 8-12-32 (1200ppm) on the hydro gardens website. My question is this, can I use the same 8-15-36 on strawberry's too? I can set the ppm for what the strawberry's like (1200ppm) on a different tank or is there a happy medium for both say 1400-1500 to use the same tank? The main question I have is that I want to use the same 8-15-36 for both and save some cash is this doable?