Question

Calculati
$- \frac{25}{39} - ( \frac{18}{39} )$

$\frac{7}{12} + \frac{5}{12}$

$\frac{21}{14} - \frac{9}{14}$

$\frac{5}{8} + \frac{3}{4}$

$- \frac{11}{12} + \frac{11}{20}$

$\frac{8}{9} - \frac{8}{15}$

$\frac{29}{47} + ( - \frac{31}{47} )$

$\frac{7}{16} - ( - \frac{11}{12} )$

$- \frac{14}{21} + ( - \frac{15}{28} )$

ajutaţi va rog !!!
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Answer 1

Sper ca te-am ajutat !!!!!!