Question

Cu cat trebuie amplificata fractia 3 supra 8? sa obtin raport procentual?

o.o

Answer 1

100/8=12,5
3/8=x/100 ⇒ 3/8=3·12,5/100=37,5/100=37,5%

Answer 2

$\frac{3}{8}$=$\frac{x}{100}$ ⇒
Aducem la acelasi numitor si avem 3*100=x*8
⇒ x=300/8=37,5