Răspuns :
Pai aduci la acelasi numitor fractia 4/7 si iese: -8/21:12/21=4/21 ( /-inseamna linia de fracrie)
SPER CA TE AM AJUTAT!!
-8[tex]( \frac{-8}{21} ): \frac{4}{7} =
\frac{-8}{27} * \frac{7}{4} =
\frac{-14}{27}
[/tex]