a) [tex]2,5 = 2\frac{5}{10} = 2\frac{1}{2}[/tex] [tex]0,5 = \frac{1}{2}[/tex] [tex]13,5 = 13\frac{5}{10} = 13\frac{1}{2}[/tex]
[tex]a) \\2,5 = 2\frac{5}{10} = \frac{25}{10} = \frac{5}{2}\\ 0,5 = \frac{5}{10} = \frac{1}{2}\\13,5 = 13\frac{5}{10} = \frac{135}{10} = \frac{27}{2}[/tex]
