Question

me ajuda a resolve m.m.c
a)18,20,40
b)480,75
c)36,90,120

Answer 1

Boa noite!

Para saber o MMC basta dividirmos os números em fatores primos:

a) MMC(18,20,40)
18,20,40 /2
9,10,20 /2
9,5,10 /2
9,5,5 /3
3,5,5 /3
1,5,5 /5
1,1,1
MMC(18,20,40) = 2×2×2×3×3×5 = 360

b) MMC(480,75)
480,75 /2
240,75 /2
120,75 /2
60,75 /2
30,75 /2
15,75 /3
5,25 /5
1,5 /5
1,1
MMC(480,75) = 2×2×2×2×2×3×5×5 = 2400

c) MMC(36,90,120)
36,90,120 /2
18,45,60 /2
9,45,30 /2
9,45,15 /3
3,15,5 /3
1,5,5 /5
1,1,1
MMC(36,90,120) = 2×2×2×3×3×5 = 360

Bons estudos!