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Dupa simplificarea freactiei 84/210 obtinem?

Răspuns :

[tex]\rm \frac{84}{210}^{(3}=\frac{28}{70}^{(2}=\frac{14}{35}^{(7}=\boxed{\frac25}[/tex]
84=4*3*7
210=2*3*5*7
84/21=2/5