Question

2. Calcule:
a. mmc (18, 45) =
b. mmc (21, 35) =
c. mmc (4,10 12)​

Answer 1

a. mmc (18, 45) =

18, 45 / 2

9, 45 / 3

3, 15 / 3

1, 5 / 5                      

  1 / 2 . 3 . 3 . 5 = 90

b. mmc (21, 35) =

21, 35 / 3

7, 35 / 5

7, 7 / 7                      

1, 1 / 3 . 5 . 7 = 105

c. mmc (4,10 12)​ =

4, 10, 12 / 2

2, 5, 6 / 2

1, 5, 3 / 3

1, 5, 1 / 5              

1, 1, 1 / 2 . 2 . 3 . 5 = 60