Răspunsuri

2014-09-06T13:23:54+03:00
2 \frac{1}{3}  \frac{3*2+1}{3} = \frac{7}{3}

2 \frac{1}{2} = \frac{2*2+1}{2} =
 
 \frac{5}{2}

 \frac{7}{3} - ( \frac{5}{2} - 2)*  \frac{6}{5} =

 \frac{7}{3}  \frac{5-4}{2} * \frac{6}{5} =

 \frac{7}{3}  \frac{1*6}{2*5} =

 \frac{7}{3}  \frac{6}{10} = \frac{10*7-6*3}{30} =

 \frac{52}{30} = 26/15