transformam fractiile zecimale in fractii ordinare
0,1(6)=[tex] \frac{16-1}{90}= \frac{15 ^{(15} }{90}= \frac{1}{6} [/tex]
0,5(6)=[tex] \frac{56-5}{90}= \frac{51}{90} [/tex] o "simplificam" pe asta cu 51, sa avem acelasi numarator obtinem 1/1.7
[tex] \frac{1}{6}< \frac{1}{x}< \frac{1}{1.7} [/tex]
x={2,3,4,5}
suma 2+3+4+5=14