Question

ayuden porfa
ayuden porfa​

Answer 1

Respuesta:

$\frac{12}{7} + \frac{4}{7} - \frac{20}{7} = \frac{16}{7} - \frac{20}{7} = \frac{ - 4}{7}$

$\frac{21}{13} - \frac{14}{13} + \frac{10}{13} = \frac{7}{13} + \frac{10}{13} = \frac{17}{13}$

$\frac{15}{11} - \frac{10}{11} + \frac{21}{11} = \frac{5}{11} + \frac{21}{11} = \frac{26}{11}$

$\frac{31}{17} + \frac{41}{17} - \frac{38}{17} = \frac{72}{17} - \frac{38}{17} = \frac{34}{17} = 2$

$\frac{7}{3} - \frac{4}{5} + \frac{10}{6} = \frac{70}{30} - \frac{24}{30} + \frac{50}{30} = \frac{46}{30} + \frac{50}{30} = \frac{96}{30} = \frac{32}{10}$

$\frac{2}{5} - \frac{1}{4} + \frac{7}{2} - \frac{4}{10} = \frac{8}{20} - \frac{5}{20} + \frac{70}{20} - \frac{8}{20} = \frac{3}{20} + \frac{70}{20} - \frac{8}{20} = \frac{73}{20} - \frac{8}{20} = \frac{55}{20} = \frac{11}{4}$