Răspuns:
a) [tex]\frac{1}{2} + \frac{1}{4} + \frac{3}{8} = \frac{4+2+3}{8} = \frac{9}{8}[/tex]
b) [tex]\frac{3}{4} + \frac{5}{6} + \frac{1}{2} = \frac{9+10+6}{12} = \frac{25}{12}[/tex]
c) [tex]\frac{3}{4} + \frac{5}{8} + \frac{1}{12} = \frac{18+15+2}{24} = \frac{35}{24}[/tex]
d) [tex]\frac{4}{5} + \frac{4}{15} + \frac{3}{10} = \frac{24+8+9}{30} = \frac{41}{30}[/tex]
e) [tex]\frac{2}{3} + \frac{3}{5} + \frac{1}{15} = \frac{10+9+1}{15} = \frac{20}{15} = \frac{4}{3}[/tex]
f) [tex]\frac{5}{6} + \frac{1}{2} + \frac{1}{8} = \frac{20+12+3}{24} = \frac{25}{24}[/tex]
g) [tex]\frac{3}{8} + \frac{5}{6} + \frac{7}{12} = \frac{9+20+14}{24} = \frac{43}{24}[/tex]
h) [tex]\frac{1}{2} + \frac{2}{3} + \frac{3}{4} = \frac{6+8+9}{12} = \frac{23}{12}[/tex]
i) [tex]\frac{1}{6} + \frac{1}{9} + \frac{1}{12} = \frac{12+8+3}{72} = \frac{23}{72}[/tex]
