a) 2,(5)= [tex]\dfrac{25-2}{9}[/tex]= [tex]\dfrac{23}{9}[/tex]
13,(7)= [tex]\dfrac{137-13}{9}[/tex]= [tex]\dfrac{124}{9}[/tex]
125,(8)= [tex]\dfrac{1258-125}{9}[/tex]= [tex]\dfrac{1133}{9}[/tex]
0,(29)= [tex]\dfrac{29}{99}[/tex]
4,(37)= [tex]\dfrac{437-4}{99}[/tex]= [tex]\dfrac{433}{99}[/tex]
125,(106)= [tex]\dfrac{125106-125}{999}[/tex]= [tex]\dfrac{124981}{999}[/tex]
29,(471)= [tex]\dfrac{29471-29}{999}[/tex]= [tex]\dfrac{29442}{999}[/tex]= [tex]\dfrac{9814}{333}[/tex]
b) 0,2(7)= [tex]\dfrac{27-2}{90}[/tex]= [tex]\dfrac{25}{90}[/tex]= [tex]\dfrac{5}{18}[/tex]
4,6(5)= [tex]\dfrac{465-46}{90}[/tex]= [tex]\dfrac{419}{90}[/tex]
8,23(7)= [tex]\dfrac{8237-823}{900}[/tex]= [tex]\dfrac{7414}{900}[/tex]
16,14(35)= [tex]\dfrac{161435-1614}{9900}[/tex]= [tex]\dfrac{159821}{9900}[/tex]
200,79(125)= [tex]\dfrac{20079125-20079}{99900}[/tex]= [tex]\dfrac{20059046}{99900}[/tex]
