Răspuns:
5)
a)0,(2)=2/9
b)0,(8)=8/9
c)1,(4)=13/9
d)0,(14)=14/99
e)0,(007)=7/999
f)3,(27)=324/99⁹=36/11
g)0,5(4)=54/90⁹=6/10²=3/5
h)0,07(2)=72/900⁹=8/100⁴=2/25
i)0,21(02)=2102/9900²=1051/4950
j)1,3(12)=1299/990³=433/330
k)2,05(7)=1852/900⁴=463/225
l)0,4(27)=423/990⁹=47/110
m)1,0(21)=1011/990³=337/330
