Question

Determine o mmc entre os números:20,28. 9,10 63,105 32,48,108. 36,12,18,

Answer 1

Boa noite Chrismar,

MMC de 20 e 28 :

20,28  2
10,14  2
05,07  5
01,07  7
01,01
-----------------------
2² x 5 x 7 = 4 x 5 x 7 = 20 x 7 = 140

MMC de 9 e 10 :

9,10  2
9,05  5
9,01  9
01,01
-----------------------
2 x 5 x 9 = 10 x 9 = 90

MMC de 63 e 105 : 

63,105  3
21,035  3
07,035  5
07,007  7
01,001
-----------------------
3² x 5 x 7 = 9 x 5 x 7 = 45 x 7 = 315

MMC de 32,48 e 108 :

32,48,108  2
16,24,054  2
08,12,027  2
04,06,027  2
02,03,027  2
01,03,027  3
01,01,009  3
01,01,003  3
01,01,001
---------------------------
2⁵ x 3³ = 32 x 27 = 864

MMC de 36,12 e 18 :

36,12,18  2
18,06,09  2
09,03,09  3
03,01,03  3
01,01,01
----------------------
2² x 3² = 4 x 9 = 36