Question

Calcule o mmc e mdc número abaixo
A) 15,42 B) 18,26 C) 54,72 D) 90 120

Answer 1

Resposta:

A) MMC 15,42: 210

15, 42 | 2

15, 21 | 3

5, 7 | 5

1, 7 | 7

1, 1 | 1

= 2 . 3 . 5 . 7 = 210

MDC 15,42: 3

15, 42 | 3

5, 14  | nenhum número divide esses dois ao mesmo tempo

= 3

B) MMC 18,26: 234

18, 26 | 2

9, 13 | 3

3, 13 | 3

1, 13 | 13

1, 1 | 1

= 2 . 3 . 3 . 13 = 234

MDC 18,26: 2

18, 26 | 2

9, 13 | nenhum número divide esses dois ao mesmo tempo

= 2

C) MMC 54,72: 216

54, 72 | 2

27, 36 | 2

27, 18 | 2

27, 9 | 3

9, 3 | 3

3, 1 | 3

1, 1 | 1

= 2 . 2 . 2 . 3 . 3 . 3 = 216

MDC 54,72: 18

54, 72 | 2

27, 36 | 3

9, 12 | 3

3, 4 |

= 2 · 3 · 3 = 18

D) MMC 90,120: 360

90, 120 | 2

45, 60 | 2

45, 30 | 2

45, 15 | 3

15, 5 | 3

5, 5 | 5

1, 1 | 1

= 2 . 2 . 2 . 3 . 3 . 5 = 360

MDC 90,120: 30

90, 120 | 2

45, 60 | 3

15, 20 | 5

3, 4 |

= 2 · 3 · 5 = 30