Respuesta:
1.- [tex]\frac{3}{5} +\frac{4}{5} - \frac{6}{5} = \frac{1}{5}[/tex]
2.- [tex]\frac{2}{7}+\frac{6}{7}+\frac{1}{7}-\frac{7}{7} = \frac{2}{7}[/tex]
3.- [tex]\frac{3}{5}+\frac{2}{7} = \frac{21+10}{35} =\frac{31}{35}=0.8857[/tex]
4.- [tex]\frac{8}{7}-\frac{3}{8} =\frac{64-21}{56} =\frac{43}{56} =0.7679[/tex]
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Respuesta:
1.- [tex]\frac{3}{5} +\frac{4}{5} - \frac{6}{5} = \frac{1}{5}[/tex]
2.- [tex]\frac{2}{7}+\frac{6}{7}+\frac{1}{7}-\frac{7}{7} = \frac{2}{7}[/tex]
3.- [tex]\frac{3}{5}+\frac{2}{7} = \frac{21+10}{35} =\frac{31}{35}=0.8857[/tex]
4.- [tex]\frac{8}{7}-\frac{3}{8} =\frac{64-21}{56} =\frac{43}{56} =0.7679[/tex]