Respostas
Vamos lá....
O mdc são fatores comuns de menores expoentes.
O MDC de:
a)
40,64/2
20,32/2
10/16/2
5,8/2
5,4/2
5,2/2
5,1/5
1,1
MDC = 2.2.2 =8
b)
80,100,120/2
40,50,60/2
20,25,30/2
10,25,15/2
5,25,15/3
5,25,5/5
1,5,1/5
1,1,1
MDC = 2.2.5 = 20
c)
40,70,90/2
20,35,45/2
10,35,45/2
5,35,45/3
5,35,15/3
5,35,5/5
1,35,1/5
1,7,1/7
1,1,1
MDC = 2.5 = 10
d)
576,95/2
288,95/2
144,95/2
72/95/2
36,95/2
18,95/2
9,95/3
3,95/3
1,95/5
1,19/19
1,1
MDC = 1
Espero ter ajudado
=8 100/2 120/2 80/2 50/2 60/2 40/2 25/2 30/2 20/2 5/5 15/3 10/2 1 5/5 1 5/5
mc de 80,100,120=2.5=4.5=20
64/2 40/2
32/2 20/2
16/2 10/2
8/2 5/5/1 dois é o três pequeno em cima do dois.
4/2
2/2
1
mc 64=2.2 40,64