Question

Daca a supra b este egal cu 3 supta 5 ,calculati 2a supra 5b.


Va rog ajutatima dau coroana si nu glumesc urgent.

Answer 1

poza
----------------------

Answer 2

$\frac{a}{b} = \frac{3}{5}=k \\ \\ a=3k \\ \\ b=5k \\ \\ \frac{2a}{5b} = \frac{2*3k}{5*5k} = \frac{6k}{25k} = \frac{6}{25}$