Acest exercitiu va rog dau coroana si abonare !

a)
[tex] \frac{5}{3} [/tex]
b)
[tex] \frac{3}{7} \frac{13}{24} \frac{27}{32} [/tex]
c)
[tex] \frac{7}{4} - \frac{3}{4} = \frac{4}{4} \: care \: e \: un \: intreg[/tex]
d)
[tex] \frac{3}{8} + \frac{10}{8} = \frac{13}{8} [/tex]
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