tolong piss besok dikumpulin

semoga membantu ya..
[tex]3). \frac{1}{4} + \frac{6}{8} = \frac{2}{8} + \frac{6}{8} = \frac{8}{8} = 1 \\ 4). \: \frac{4}{9} + \frac{20}{6} = \frac{8}{18} + \frac{60}{18} = \frac{68}{18} \\ 5). \: \frac{2}{4} + \frac{11}{2} = \frac{2}{4} + \frac{22}{4} = \frac{24}{4} = 6[/tex]