Question

qual o mmc de: 20,21,25​

Answer 1

MMC de 20

$20 | 2 \\ 10 | 2 \\ \: \: 5 | 5 \\ \: \: 1 | {2}^{2} \times 5$

MMC de 21

$21 | 3 \\ \: \: 7 | 7 \\ \: \: 1 | 3 \times 7$

MMC de 25

$25 | 5 \\ \: \: 5 | 5 \\ \: \: 1 | {5}^{2}$

Answer 2

resolução!

20 , 21 , 25 / 2

10 , 21 , 25 / 2

5 , 21 , 25 / 3

5 , 7 , 25 / 5

1 , 7 , 5 / 5

1 , 7 , 1 / 7

1 , 1 , 1

MMC => 2 * 2 * 3 * 5 * 5 * 7 = 2100

espero ter ajudado