Answer:
28 + 24 = 52
GCF would be 4 as that's the highest possible factor. We need to multiply the GCF with some numbers to get 52.
Divide both numbers (28 and 24) by 4. You get 7 and 6 which are the numbers you add to get 52
That would be this:
28+24 = 4(7+6)