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Baltagajanetel
a fost răspuns

 frac{-28}{-54}*frac{45}{7} 
calculati va rog

Răspuns :

Afrumusica84
[tex] \frac{-28}{-54} * \frac{45}{7} = \frac{14}{27} * \frac{45}{7}= \frac{14*45}{27*7} = \frac{630}{189} [/tex] -simplificam prin 3
[tex] \frac{210}{63} -simplificam-prin -3= \frac{70}{21} -simpificam prin 7= \frac{10}{3} [/tex]

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