[tex]a)\frac{2}{4} +\frac{3}{4} +\frac{1}{6} =\frac{5}{4} +\frac{1}{6}\\\\mmc(4,6)=12\\\\\frac{5.3}{4.3} +\frac{1.2}{6.2}=\frac{15}{12} +\frac{2}{12}=\frac{17}{12}[/tex]
[tex]b)\frac{3}{8} +\frac{6}{3}-\frac{4}{3} =\frac{3}{8}+\frac{2}{3}\\\\mmc(8,3)=24\\\\\frac{3.3}{8.3} +\frac{2.8}{3.8}=\frac{9}{24} +\frac{16}{24}=\frac{25}{24}[/tex]
[tex]c)\frac{3}{2} +\frac{6}{5} -\frac{3}{2} =\frac{3}{2} -\frac{3}{2}+\frac{6}{5}=\frac{6}{5}[/tex]
