\frac{1}{8}+\frac{1}{4}=\frac{1}{8}+\frac{2}{8}=\frac{3}{8}
\frac{1}{8}+\frac{9}{8}=\frac{10}{8}=1\frac{2}{8}=1\frac{1}{4}
\frac{1}{8}+\frac{3}{4}=\frac{1}{8}+\frac{6}{8}=\frac{7}{8}
\frac{1}{8}+\frac{5}{6}=\frac{3}{24}+\frac{20}{24}=\frac{23}{24}
\frac{1}{8}+2\frac{1}{2}=\frac{1}{8}+2\frac{4}{8}=2\frac{5}{8}
\frac{1}{8}+1\frac{1}{12}=\frac{3}{24}+1\frac{2}{24}=1\frac{5}{24}