Question

ayuda porfavor es para hoy​

Answer 1

Respuesta:

a) 0.028571429

B) 1.088888889

C) .4.16666667

D) -1.023809524

F) -3.966666667

Answer 2

Respuesta:

$a) - \frac{3}{5} + \frac{4}{7} = - \frac{21}{35} + \frac{20}{35} = - \frac{1}{35}$

$b) \frac{8}{9} - ( - \frac{1}{5} ) = \frac{8}{9} + \frac{1}{5} = \frac{40}{45} + \frac{9}{45} = \frac{49}{45}$

$c) \frac{15}{10} + \frac{8}{3} = \frac{3}{2} + \frac{8}{3} = \frac{9}{6} + \frac{16}{6} = \frac{25}{6}$

$d) - \frac{6}{7} - \frac{2}{12} = - \frac{72}{84} - \frac{14}{84} =( - \frac{72}{84} ) + ( - \frac{14}{84} ) = - \frac{86}{84} = - \frac{43}{42}$

$e) \frac{4}{9} + \frac{1}{2} - \frac{3}{8} = \frac{32}{72} + \frac{36}{72} - \frac{27}{72} = \frac{45}{72} = \frac{15}{26}$

$f) - \frac{7}{15} - \frac{7}{3} - \frac{7}{6} = - \frac{14}{30} - \frac{70}{30} - \frac{35}{30} = - \frac{14}{30} + ( - \frac{70}{30} ) + ( - \frac{35}{30} ) = - \frac{119}{30}$