Question

mmc 12,16,20
mdc15,20
mdc32,40

Answer 1

calcule o mmc 12,16,20 = 2^4.3.5 = 240

12,16,20  2
 6,  8, 10  2
15/3
5/5
1=3.5


20/2
10/2
5/5
1=2(com expoente quadrado)e 5

o m.d.c=5
 3,  4,  5   2
 3,  2,  5   2
 3,  1,  5   3
 1,  1,  5   5
 1,  1,  1
32, 40 | 2
16, 20 | 2
08, 10 | 2
04, 05 | 2
02, 05 | 2
01, 05 | 5
01, 01

MDC (32, 40) =
MDC (32, 40) = 2 . 2 . 2
MDC (32, 40) = 8