Question

calcule o mmc dos numero
a) 15.18.20
b) 6.9.18=
C) 16.30.12 =
D)25.14-18=
E)28.14.12=
F) 8.16.30​=

Answer 1

Olá....

O MMC são fatores comuns e não comuns de maiores expoentes.

MMC de:

a) (15, 18, 20)

15, 18, 20 | 2

15, 9, 10 | 2

15, 9, 5 | 3

5, 3, 5 | 3

5, 1, 5 | 5

1, 1, 1

MMC = 2 . 2 . 3 . 3 . 5 = 180

MMC = 180

b) (6, 9, 18)

6, 9, 18 | 2

3, 9, 9 | 3

1, 3, 3 | 3

1, 1, 1

MMC = 2 . 3 . 3 = 18

MMC = 18

c) (16, 30, 12)

16, 30, 12 | 2

8, 15, 6 | 2

4, 15, 3 | 2

2, 15, 3 | 2

1, 15, 3 | 3

1, 5, 1 | 5

1, 1, 1

MMC = 2 . 2 . 2 . 2 . 3 . 5 = 240

MMC = 240

d) (25, 14, 18)

25, 14, 18 | 2

25, 7, 9 | 3

25, 7, 3 | 3

25, 7, 1 | 5

5, 7, 1 | 5

1, 7, 1 | 7

1, 1, 1

MMC = 2 . 3 . 3 . 5 . 5 . 7 = 3150

MMC = 3150

e) (28, 14, 12)

28, 14, 12 | 2

14, 7, 6 | 2

7, 7, 3 | 3

7, 7, 1 | 7

1, 1, 1

MMC = 2 . 2 . 3 . 7 = 84

MMC = 84

f) (8, 16, 30)

8, 16, 30 | 2

4, 8, 15 | 2

2, 4, 15 | 2

1, 2, 15 | 2

1, 1, 15 | 3

1, 1, 5 | 5

1, 1, 1

MMC = 2 . 2 . 2 . 2 . 3 . 5 = 240

MMC = 240

Espero ter ajudado