Respuesta:
1.\frac{7}{4}+\frac{9}{4}=4
2.\frac{3}{10}-\frac{7}{40}=\frac{1}{8}
3.\frac{3}{5}+\frac{5}{15}-\frac{2}{10}=\frac{11}{15}
4.\frac{3}{13}+\frac{5}{21}-\frac{2}{39}=\frac{38}{91}
5.\frac{7}{24}+\frac{5}{12}-\frac{1}{6}=\frac{13}{24}
6. \frac{2}{13}-\frac{5}{26}+\frac{1}{39}=-\frac{1}{78}
Explicación paso a paso:
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Respuesta:
1.\frac{7}{4}+\frac{9}{4}=4
2.\frac{3}{10}-\frac{7}{40}=\frac{1}{8}
3.\frac{3}{5}+\frac{5}{15}-\frac{2}{10}=\frac{11}{15}
4.\frac{3}{13}+\frac{5}{21}-\frac{2}{39}=\frac{38}{91}
5.\frac{7}{24}+\frac{5}{12}-\frac{1}{6}=\frac{13}{24}
6. \frac{2}{13}-\frac{5}{26}+\frac{1}{39}=-\frac{1}{78}
Explicación paso a paso: