( 8 y 12 ) m.c.m = 2.2.2 .3
8.3 = 24
d.c.m = 2.2 = 4
( 20 y 36 ) m.c.m.= 2.2 . 3.3 . 5 =
4. 9. 5 = 180
d.c.m = 2.2 = 4
( 20 , 45 , 60 ) m.c.m.= 2.2 . 3.3 . 5 =
4.9.5= 180
d.c.m. = 2.2 . 5 =
4. 5 = 20
( 3 y 5 ) m.c.m. = 3.5 = 15
d.c.m. = 1
( 7 y 11 ) m.c.m. = 7 . 11 = 77
d.c.m. = 1