Question

Aflati cel mai mare divizor comun al nr: a ) 6,,12 ; b) 6, 12, 18 ; c )30,40,50; d)63,72,81;

Answer 1

a)6= 2·3
12=2 la a 2-a·3
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c.m.m.d.c.=2·3=6
b)6=2·3
12=2·2·3
18=2·3·3
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c.m.m.d.c.=2·3=6
c)30=2·3·5
40=2·2·2·5
50=2·5·5
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c.m.m.d.c=2·5=10
d)63=3·3·7
72=3·3·2·2·2
81=3·3·3·3
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c.m.m.d.c.=3·3=9