Respuesta :
[tex]\bf{\frac{7}{8}m+ \frac{9}{10}-2 m-\frac{3}{5}[/tex]
[tex](\frac{7}{8}m-2m )+(\frac{9}{10}-\frac{3}{5})[/tex]
[tex]\boxed{\bf{-\frac{9m}{8} +\frac{3}{10}}}[/tex] ← [tex]\bf{Resultado[/tex]
[tex]\bf{\frac{7}{8}m+ \frac{9}{10}-2 m-\frac{3}{5}[/tex]
[tex](\frac{7}{8}m-2m )+(\frac{9}{10}-\frac{3}{5})[/tex]
[tex]\boxed{\bf{-\frac{9m}{8} +\frac{3}{10}}}[/tex] ← [tex]\bf{Resultado[/tex]