Question

No explicaciones solo respuestas,Doy 30 puntos por favor no me estafen :(​

Answer 1

Respuesta:    

$\frac{4}{3} +\frac{2}{7} =\frac{28+6}{21} =\frac{34}{21}$

$\frac{3}{4} +\frac{5}{9} =\frac{27+20}{36} =\frac{57}{36}$

$\frac{2}{9} +\frac{2}{6} =\frac{4+6}{18} =\frac{10}{18}$

$\frac{6}{7} +\frac{3}{4} =\frac{24+21}{28} =\frac{45}{28}$

$\frac{8}{9} +\frac{4}{4} =\frac{32+36}{36} =\frac{68}{36}$

$\frac{4}{5} -\frac{5}{8} =\frac{32-25}{40} =\frac{7}{40}$

$\frac{7}{8} -\frac{2}{3} =\frac{21-16}{24} =\frac{5}{24}$

$\frac{4}{5} -\frac{4}{7} =\frac{28-10}{35} =\frac{8}{35}$

$\frac{2}{3} -\frac{6}{9} =\frac{6-6}{9} =\frac{0}{9}= 0$

$\frac{6}{7} -\frac{4}{5} =\frac{30-28}{35} =\frac{2}{35}$