a+b+c =2340
0.5 =5/10 =1/2 invers 2/1 =2
0.(6) =6/9 =2/3 invers 3/2
0.4 =4/10 =2/5 invers 5/2
a b c
---- = ---- = ------= k
2 3/2 5/2
a/2 =k a =2k
b
---- = k b =3k/2
3/2
c
----- = k c =5k/2
5/2
2k+3k/2+5k/2 =2340 numitor 2
4k+3k+5k=4680
12k =4680
k =4680 :12 =390
a =2k ; a=2*390 =780
b=3k/2 =3*390/2 =1170/2 =585
c =5k/2 =5*390/2 =1950 /2 =975
v ; 780+585+975 =2340
