12 20
/\ /\
2 6 2 10
2 3 2 5
12 = 2² x 3
20 = 2² x 5
FPB = 2² = 4.
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20 = 2^2 x 5
FPB = 2^2 = 4
Jawabannya A
12 20
/\ /\
2 6 2 10
/\ /\
2 3 2 5
12 = 2² x 3
20 = 2² x 5
FPB = 2² = 4.