cum sa fac la ex 2 ?

Simplu, amplifici sau simplifici fractiile:
Răspuns:
a)
[tex]\frac{12}{28} = \frac{24}{56} = \frac{36}{84}[/tex]
b)
[tex]\frac{125}{15} = \frac{25}{3} = \frac{500}{60}[/tex]
c)
[tex]\frac{2^{3}}{8} = \frac{1}{1} = \frac{6}{6}[/tex]
d)
[tex]\frac{1}{3} = \frac{3}{9} = \frac{2}{6}[/tex]