SUMA DE FRACCIONES
\frac{8}{21}+\frac{9}{49}
\frac{9}{70}+\frac{3}{49}
\frac{1}{2}+\frac{3}{16}
\frac{9}{28}+\frac{9}{40}
\frac{1}{8}+\frac{1}{8}
\frac{2}{27}+\frac{7}{18}
\frac{1}{9}+\frac{3}{4}
\frac{2}{45}+\frac{1}{4}
\frac{5}{36}+\frac{1}{4}
\frac{1}{6}+\frac{3}{10}
\frac{1}{6}+\frac{1}{2}
\frac{1}{6}+\frac{7}{48}
\frac{1}{3}+\frac{5}{9}
\frac{1}{14}+\frac{1}{10}
\frac{5}{27}+\frac{5}{27}
\frac{7}{24}+\frac{1}{4}
\frac{4}{27}+\frac{5}{9}
\frac{1}{14}+\frac{1}{6}
