Calcula las siguientes sumas de fracciones y números mixtos.
\frac{5}{7}+\frac{5}{6}
- MCM de 7 y 6: 7\times 6=42.
- \frac{5}{7}=\frac{5\times 6}{42}=\frac{30}{42} y \frac{5}{6}=\frac{5\times 7}{42}=\frac{35}{42}.
- \frac{30}{42}+\frac{35}{42}=\frac{65}{42}.
\frac{65}{42}=1\frac{23}{42}
\frac{5}{9}+\frac{3}{5}
- MCM de 9 y 5: 45.
- \frac{5}{9}=\frac{25}{45} y \frac{3}{5}=\frac{27}{45}.
- \frac{25}{45}+\frac{27}{45}=\frac{52}{45}.
\frac{52}{45}=1\frac{7}{45}
\frac{6}{35}+\frac{9}{10}
- MCM de 35 y 10: 70.
- \frac{6}{35}=\frac{12}{70} y \frac{9}{10}=\frac{63}{70}.
- \frac{12}{70}+\frac{63}{70}=\frac{75}{70}=\frac{15}{14}.
\frac{15}{14}=1\frac{1}{14}
\frac{5}{6}+1\frac{3}{8}
- 1\frac{3}{8}=\frac{11}{8}.
- MCM de 6 y 8: 24.
- \frac{5}{6}=\frac{20}{24} y \frac{11}{8}=\frac{33}{24}.
- \frac{20}{24}+\frac{33}{24}=\frac{53}{24}.
\frac{53}{24}=2\frac{5}{24}
1\frac{1}{3}+\frac{1}{4}
- 1\frac{1}{3}=\frac{4}{3}.
- MCM de 3 y 4: 12.
- \frac{4}{3}=\frac{16}{12} y \frac{1}{4}=\frac{3}{12}.
- \frac{16}{12}+\frac{3}{12}=\frac{19}{12}.
\frac{19}{12}=1\frac{7}{12}
1\frac{3}{5}+1\frac{1}{2}
- 1\frac{3}{5}=\frac{8}{5} y 1\frac{1}{2}=\frac{3}{2}.
- MCM de 5 y 2: 10.
- \frac{8}{5}=\frac{16}{10} y \frac{3}{2}=\frac{15}{10}.
- \frac{16}{10}+\frac{15}{10}=\frac{31}{10}.
\frac{31}{10}=3\frac{1}{10}
3\frac{1}{8}+1\frac{1}{6}
- 3\frac{1}{8}=\frac{25}{8} y 1\frac{1}{6}=\frac{7}{6}.
- MCM de 8 y 6: 24.
- \frac{25}{8}=\frac{75}{24} y \frac{7}{6}=\frac{28}{24}.
- \frac{75}{24}+\frac{28}{24}=\frac{103}{24}.
\frac{103}{24}=4\frac{7}{24}
1\frac{2}{5}+2\frac{6}{7}
- 1\frac{2}{5}=\frac{7}{5} y 2\frac{6}{7}=\frac{20}{7}.
- MCM de 5 y 7: 35.
- \frac{7}{5}=\frac{49}{35} y \frac{20}{7}=\frac{100}{35}.
- \frac{49}{35}+\frac{100}{35}=\frac{149}{35}.
\frac{149}{35}=4\frac{9}{35}
1\frac{3}{10}+2\frac{5}{6}
- 1\frac{3}{10}=\frac{13}{10} y 2\frac{5}{6}=\frac{17}{6}.
- MCM de 10 y 6: 30.
- \frac{13}{10}=\frac{39}{30} y \frac{17}{6}=\frac{85}{30}.
- \frac{39}{30}+\frac{85}{30}=\frac{124}{30}=\frac{62}{15}.
\frac{62}{15}=4\frac{2}{15}








