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1) a) 1/6+1/6·3
b)1/5+1/5:1/2



Răspuns :

a)1/6+3/6=4/6=2/3
b)1/5+1/5x2/1=1/5+2/5=3/5
[tex]1.a)\\ \frac{1}{6} + \frac{1}{6} *3= \frac{2}{3} \\ = \frac{1}{6} + \frac{3}{6} \\ = \frac{4}{6} (simplificam ~cu~2=>) \boxed{= \frac{2}{3} }\\\\ b) \frac{1}{5} + \frac{1}{5} : \frac{1}{2} = \frac{3}{5} \\ = \frac{1}{5} + \frac{1}{5} * \frac{2}{1} \\ = \frac{1}{5} + \frac{2}{5} \\ \boxed{= \frac{3}{5} }[/tex]