Respuesta :
One way to solve this problem is with prime factorization
12 = 2 × 2 × 3
28 = 2 × 2 × 7
32 = 2 × 2 × 2 × 2 × 2
LCM = 2 × 2 × 2 × 2 × 2 × 3 × 7 = 672
12 = 2 × 2 × 3
28 = 2 × 2 × 7
32 = 2 × 2 × 2 × 2 × 2
LCM = 2 × 2 × 2 × 2 × 2 × 3 × 7 = 672
