Răspunsuri

2014-09-28T13:42:50+03:00
{a,b,c} i.p.{2,4,5}=>
a/1/2=b/1/4=c/1/5=k
se aduce la aceelasi numitor care este 20
a/10=b/5=c/4=k
a=10k
b=5k
c=4k
10k+2*5k+4k=48
24k=48
k=2
a=20
b=10
c=8