Question

ajutai-ma va rog !!!!!!

Answer 1

$\frac{4}{10} = \frac{2}{5} ; \frac{28}{84}= \frac{8}{21} ; \frac{333}{444} = \frac{3}{4} ; \frac{25}{3250} = \frac{1}{130} ; \frac{2*5*7}{3*5*11}= \frac{14}{33}$