Not too sure of your question but the GCF of 75 and 90 is 15
The GCF of 75 and 90 is 15.
(5 x 15) + (6 x 15) = 11 x 15 = 165
GCF of 90 and 75 is 15.
GCF(75, 90) = 15 75 = 15*5 90 = 15*6 75 + 90 = 15*(5 + 6) = 15*11 = 165.
The GCF is 3.
The GCF is 3.
The GCF is 15.
The GCF is 15.
The GCF is 15.
15 x 11
The GCF is 3.
The GCF is 15.