Question

m.m.c 3 e 7 m.m.c 5 e 14

Answer 1

3, 7 | 3
1, 7 | 7
1, 1

MMC: 3 . 7 = 21

5, 14 | 2
5, 7 | 5
1, 7 | 7
1, 1

MMC: 2 . 5 . 7 = 70

Espero ter ajudado.

Answer 2

a)
mmc (3,7) = 21

3,7: 3
1,7: 7
1,1     =3.7 = 21
==========================
b)
mmc (5,14) = 70

5,14: 2
5,7: 5
1,7: 7
1,1      = 2.5.7 = 10.7 = 70