[tex]1. \: \: \frac{5}{6} + 1 \frac{1}{4} = \frac{5}{6} + \frac{5}{4} = \frac{10 + 15}{12} = \frac{25}{12} = 2 \frac{1}{12} [/tex]
[tex]2. \: \: \frac{3}{4} + \frac{5}{10} = \frac{3}{4} + \frac{1}{2} = \frac{3 + 2}{4} = \frac{5}{4} = 1 \frac{1}{4} [/tex]
[tex]3. \: \: 2 \frac{1}{3} + 1 \frac{1}{2} = \frac{7}{3} + \frac{3}{2} = \frac{14 + 9}{6} = \frac{23}{6} = 3 \frac{5}{6} [/tex]
[tex]4. \: \: 1 \frac{7}{10} + \frac{2}{5} = \frac{17}{10} + \frac{2}{5} = \frac{1 7+4 }{10} = \frac{21}{10} = 2 \frac{1}{10} [/tex]
[tex]5. \: \: 2 \frac{3}{8} + 1 \frac{1}{3} = \frac{19}{8} + \frac{4}{3} = \frac{57 + 32}{24} = \frac{89}{24} = 3 \frac{17}{24} [/tex]