Respuesta :

Kianagruber
Factors of 18: 1; 2; 3; 6; 9; 18

Factors of 27: 1; 3; 9; 27

GCF(18; 27) = 9

18 + 27 = 9 × 2 + 9 × 3 = 9 × (2 + 3) 
erikavarga
18+27=45       
factors of 18 are 1,2,3,6,9
factors of 27 are 1,3,9
gcf=9
9x5=45

I'm not positive if this is the answer. I'm a little confused about "another sum". I'm not sure if its asking for another factor of the two numbers or just another number. But I think what I did is right. I'm sorry if I'm wrong. 

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