Question

completeaza 3supra5=[]supra25

Answer 1

3/5=15/25
3/5=0,6
15/25=0,6

Answer 2

$\frac{3}{5}= \frac{x}{25}$

$x= \frac{3*25}{5}$

$x=15$

sau ------------------------------------

$\frac{3}{5} = \frac{3*5}{5*5} = \frac{15}{25}$ (prin amplificare)