a) [tex]10,\:12,\:14[/tex]
Descomponemos en factores primos
10= 2 x 5
12= 2 x 2 x 3
14= 2 x 7
[tex]=2\cdot \:2\cdot \:5\cdot \:3\cdot \:7[/tex]
[tex]\boxed{=420}[/tex]
Entonces decimos que el MCM de 10, 12 y 14 es 420
El MCD es 2
b) [tex]9,\:15,\:21[/tex]
9= 3 x 3
15= 3 x 5
21 = 3 x 7
[tex]=3\cdot \:3\cdot \:5\cdot \:7[/tex]
[tex]\boxed{=315}[/tex]
El MCD es 3
c) [tex]20,\:30,\:40[/tex]
20= 2 x 2 x 5
30= 2 x 3 x 5
40= 2 x 2 x 2 x 5
[tex]=2\cdot \:2\cdot \:2\cdot \:5\cdot \:3[/tex]
[tex]\boxed{=120}[/tex]
El MCD es 10
d) [tex]18,\:36,\:72[/tex]
18= 2 x 3 x 3
36= 2 x 2 x 3 x 3
72= 2 x 2 x 2 x 3 x 3
[tex]=2\cdot \:2\cdot \:2\cdot \:3\cdot \:3[/tex]
[tex]\boxed{=72}[/tex]
El MCD es 18
e) [tex]24,\:38,\:80[/tex]
24= 2 x 2 x 2 x 3
38= 2 x 19
80= 2 x 2 x 2 x 2 x 5
[tex]=2\cdot \:2\cdot \:2\cdot \:2\cdot \:3\cdot \:19\cdot \:5[/tex]
[tex]\boxed{=4560}[/tex]
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Verified answer
RESOLVER:
a) [tex]10,\:12,\:14[/tex]
Descomponemos en factores primos
10= 2 x 5
12= 2 x 2 x 3
14= 2 x 7
[tex]=2\cdot \:2\cdot \:5\cdot \:3\cdot \:7[/tex]
[tex]\boxed{=420}[/tex]
Entonces decimos que el MCM de 10, 12 y 14 es 420
El MCD es 2
b) [tex]9,\:15,\:21[/tex]
9= 3 x 3
15= 3 x 5
21 = 3 x 7
[tex]=3\cdot \:3\cdot \:5\cdot \:7[/tex]
[tex]\boxed{=315}[/tex]
El MCD es 3
c) [tex]20,\:30,\:40[/tex]
20= 2 x 2 x 5
30= 2 x 3 x 5
40= 2 x 2 x 2 x 5
[tex]=2\cdot \:2\cdot \:2\cdot \:5\cdot \:3[/tex]
[tex]\boxed{=120}[/tex]
El MCD es 10
d) [tex]18,\:36,\:72[/tex]
18= 2 x 3 x 3
36= 2 x 2 x 3 x 3
72= 2 x 2 x 2 x 3 x 3
[tex]=2\cdot \:2\cdot \:2\cdot \:3\cdot \:3[/tex]
[tex]\boxed{=72}[/tex]
El MCD es 18
e) [tex]24,\:38,\:80[/tex]
24= 2 x 2 x 2 x 3
38= 2 x 19
80= 2 x 2 x 2 x 2 x 5
[tex]=2\cdot \:2\cdot \:2\cdot \:2\cdot \:3\cdot \:19\cdot \:5[/tex]
[tex]\boxed{=4560}[/tex]
El MCD es 2
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