Răspunsuri

2014-08-24T13:23:25+03:00
a) \frac{1}{2}^{(2}  \ +  \ \frac{1}{4} = \frac{2+1}{4}=  \frac{3}{4} \\ \\ b) \frac{1}{3} + \frac{2}{6}= \frac{1}{3}+\frac{1}{3}= \frac{2}{3}

la a) am adus la acelasi numitor cu 2

la b) am simplificat a 2a fractie prin 2