Răspuns :
[tex] \frac{13}{8} - \frac{9}{24} = \\ (amplificam \: prima \: fractie \: cu \: 3) = \\ = \frac{39}{24} - \frac{9}{24} = \frac{30}{24} = \frac{5}{4} [/tex]
[tex] \frac{13}{8} - \frac{9}{24} = \\ (amplificam \: prima \: fractie \: cu \: 3) = \\ = \frac{39}{24} - \frac{9}{24} = \frac{30}{24} = \frac{5}{4} [/tex]