Question

me ayudan plis
dice
resuelve las siguientes sumas y restas de distintos denominadores , simplifica el resultado cuando sea posible ​

Answer 1

$\frac{5}{6} + \frac{3}{7} = \frac{35}{42} + \frac{18}{42} = \frac{53}{42}$

$\frac{3}{10} + \frac{6}{5} = \frac{3}{10} + \frac{12}{10} = \frac{15}{10} = \frac{3}{2}$

$\frac{2}{9} + \frac{1}{8} = \frac{16}{72} + \frac{9}{72} = \frac{25}{72}$

$\frac{9}{7} - \frac{3}{1} = \frac{9}{7} - \frac{21}{7} = \frac{ - 12}{7}$

$\frac{15}{4} - \frac{12}{5} = \frac{75}{20} - \frac{48}{20} = \frac{27}{20}$