Pentru fiecare din tripletele a, b, c scrise mai jos, determinați cel mai mic multiplu comun al
numerelor [a b] și c, iar apoi c.m.m.m.c. [a, b, c]. Comparați rezultatele.
a) 6, 12, 8
b) 4, 8, 6
c) 10, 20, 6
d) 10, 50, 15
e) 12, 72, 9
f) 16, 48, 50
g) 44, 33, 264
h)16, 24, 72.​

Răspuns :

Răspuns:

Explicație pas cu pas:

a) 6, 12, 8

6 = 2 x 3

12 = 2² x 3

8 = 2³

cmmdc (6,12,8) = 2

cmmmc (6,12,8) = 2³x3 = 24

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b) 4 ,8 , 6

4 = 2²  ; 8 = 2³ ; 6 = 2 x 3

cmmdc (4,8,6) = 2

cmmmc (4,8,6) = 2³ x 3 = 24

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c) 10,20,6

10 = 2x5 ; 20 = 2² x 5 ; 6 = 2x 3

cmmdc (10,20,6) = 2

cmmmc(10,20,6) = 2²x3x5 = 60

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d) 10 , 50 , 15

10 = 2x5 ; 50 = 2x5² ; 15 = 3x5

cmmdc(10,50,15) = 5

cmmmc(10,50,15) = 5²x2x3 = 150

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e) 12, 72, 9

12 = 2²x3   ; 72 = 2³x3² ; 9 = 3²

cmmdc(12,72,9) = 3

cmmmc(12,72,9) = 2³x3² = 72

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f) 16,48,50

16 = 2⁴ ; 48 = 2⁴x3 ; 50 = 2x5²

cmmdc (16,48,50) = 2

cmmmc(16,48,50) = 2⁴x5² = 400

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g) 44,33,264

44 = 2²x11 ; 33 = 3x11 ; 264 = 2³x3x11

cmmdc(44,33,264) = 11

cmmmc(44,33,264) = 2³x3x11 = 264

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h) 16,24,72

16 = 2⁴ ; 24 = 2³x3 ; 72 = 2³x3²

cmmdc(16,24,72) = 2³ = 8

cmmmc(16,24,72) = 2⁴x3² = 144