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Flori1Rusu
a fost răspuns

10)Daca [tex] \frac{a}{b} = \frac{3}{10} [/tex] iar [tex] \frac{b}{c} = \frac{5}{6} [/tex] ,aflati [tex] \frac{a}{c}[/tex]

Răspuns :

Nonim
a/b=3/10⇒10a=3b⇒a=3b/10
b/c=5/6⇒5c=6b⇒c=6b/5

a/c=(3b/10)/(6b/5)=3b/10:6b/5=3b/10*5/6b=15b/30b=1/2

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