a) 1,25 = [tex] \frac{125}{100} [/tex] = [tex] \frac{5}{4} [/tex]
b) 3,4 = [tex] \frac{34}{10} [/tex] = [tex] \frac{17}{5} [/tex]
c) 0,(6) = [tex] \frac{6}{9} = \frac{2}{3} [/tex]
d) [tex]1,(3) = \frac{13-1}{9} = \frac{4}{3} [/tex]
e) 1,2(3) = [tex] \frac{123-12}{90}= \frac{111}{90}= \frac{37}{30} [/tex]
