Question

O Mdc e o mmc de 18,30

Answer 1

18, 30| 2
  9, 15| 3
  3,   5| 3 
  1,   5| 5
  1,   1; 2.3².5

2.3².5 = 2.9.5
2.9.5 = 18.5
18.5 = 90
MMC = 90

Answer 2

MDC :
(18, 30) = 2 x 3 = 6

MMC:

18, 30| 2
9, 15| 3
3, 5| 3
1, 5| 5
1, 1; 2.3².5

2.3².5 = 2.9.5
2.9.5 = 18.5
18.5 = 90
= 90