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12/3 :4/9 dau funda:))))))))

Răspuns :

12/3 :4/9 = 4 × 9/4 = 9
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[tex] \frac{12}{3} [/tex] : [tex] \frac{4}{9} [/tex]=
=[tex] \frac{12}{3} [/tex] * [tex] \frac{9}{4} [/tex]=
( se simplifica 3 cu 9 prin 3 si 12 cu 4 prin 4)
=9