[tex]a)2.(5) = \frac{25 - 2}{9} = \frac{23}{9} [/tex]
[tex]13.(7) = \frac{137 - 13}{9} = \frac{124}{9} [/tex]
[tex]125.(8) = \frac{1258 - 125}{9} = \frac{1133}{9} [/tex]
[tex]0.(29) = \frac{29}{99} [/tex]
[tex]4.(37) = \frac{437 - 4}{99} = \frac{433}{99} [/tex]
[tex]125.(106) = \frac{125106 - 125}{999} = \frac{124981}{999} [/tex]
[tex]29.(471) = \frac{29471 - 29}{999} = \frac{29442}{999} = \frac{9814}{333} [/tex]
[tex]b)0.2(7) = \frac{27 - 2}{90} = \frac{25}{90} = \frac{5}{18} [/tex]
[tex]4.6(5) = \frac{465 - 46}{90} = \frac{419}{90} [/tex]
[tex]8.23(7) = \frac{8237 - 823}{900} = \frac{7414}{900} = \frac{3707}{450} [/tex]
[tex]16.14(35) = \frac{161435 - 1614}{9900} = \frac{159821}{9900} [/tex]
[tex]200.79(125) = \frac{20079125 - 20079}{99900} = \frac{20059046}{99900} = \frac{10029523}{49950} [/tex]
