a) 3/8=0,375 numar finit de zecimale
12/49=0,2448979591836... nr infinit de zecimale
249/37=6,(729) periodic simplu
3256/400=407/50=8,14 numar finit de zecimale
321/90= 107/30=3,5(6) periodic mixt
b) 3,2/4,6=32/46=16/23=0,695652173913...nr infinit de zecimale
165/2,25=16500/225=660/9=73,(3) periodic simplu
3,09/2,5=309/250=1,236 numar finit de zecimale
58,6/45=586/450=293/225=1,30(2) periodic mixt
0,005/0,09=5/900=0,0(5) periodic mixt