faktor persekutuan terbesar (FPB) dari 18,54,dan72 adalah. a.6. b.9. c.12. d.18

Bab KPK dan FPB
Matematika SD Kelas V

  18 || 54 || 72
------------------------ : 9
    2 ||   6 || 8
 ----------------- : 2
     1 || 3 || 4

fpb = 9 x 2 = 18

18
/\
2 9
..../\
...3 3

54
/\
2 27
...../\
....3 9
......../\
.......3 3

72
/\
2 36
..../\
...2 18
......../\
.......2 9
........../\
.........3 3

18 = 2 x 3^2
54 = 2 x 3^3
72 = 2^3 x 3^2
FPB = 2 x 3^2 = 2 x 9 = 18 ( D )