Question

calcule os seguintes quociente :
a)
$( - \frac{13}{9} ):( + \frac{13}{7}$
b)
$( \frac{40}{3} :( - 10)$
c)
$( - \frac{50}{9} ):( + \frac{20}{3} )$
​

Answer 1

Resposta: Eliminar o fator comum 30

$a)(-\frac{13}{9} ):(+\frac{13}{7} )=$ Eliminar o fator comum 13 $-\frac{13.7}{9.13} =-\frac{7}{9}$  

$b)(\frac{40}{3}) :(-10)= -\frac{40}{3.10} =$ Eliminar o fator comum 10 $-\frac{40}{30}=-\frac{4}{3}$

$c)(-\frac{50}{9} ):(+\frac{20}{3} )=-\frac{50.3}{9.20} = -\frac{50.3}{180} =$ Eliminar o fator comum 30 $-\frac{150}{180} =-\frac{5}{6}$