Question

scrieti sub forma de fractie numarul zecimal periodic a)0,(3) b)0,(7) c)0,(21) d)0,(130) e)0,(036) f)0,(009) g)0,(12) h)0,1(6) i)16,41(6) j)0,04(6) DAU COROANA

Answer 1

0,(3)=3/9=1/3
0,(7)=7/9
0,(21)=21/99=7/33
0,(130)=130/999
0,(036)=36/999
0.(009)=9/999=1/111
0,(12)=12/99=4/33
0,1(6)=16-1/90=15/90=1/6
16,41(6)=16416-1441/900=14775/900=591/36=197/12
0,04(6)=46-4/900=42/900=21/450=7/150