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Larisa2502
a fost răspuns

E urgent!!!
Daca [tex] \frac{a}{b} [/tex] = [tex] \frac{4}{9} [/tex], aflati: [tex] \frac{5a}{5b} [/tex]; [tex] \frac{a}{-3b} [/tex]; [tex] \frac{13a}{-4b} [/tex]; [tex] \frac{b}{11a} [/tex]; [tex] \frac{-12b}{13a} [/tex].

Răspuns :

EfimSaranceanu
[tex] \frac{5a}{5b} [/tex]=[tex] \frac{20}{45} [/tex]
[tex] \frac{a}{-3b} = \frac{4}{-27} [/tex]
[tex] \frac{13a}{-4b} = \frac{52}{-36} [/tex]
[tex] \frac{b}{11a} = \frac{4}{99} [/tex]
[tex] \frac{-12b}{13a} = \frac{-48}{117} [/tex]