Question

Resolva a seguinte fração:
(2:⅗):7/3-5/3

Answer 1

$2 / \frac{3}{5} : 7/3 - 5/3 ==\ \textgreater \ \frac{2}{1} : \frac{3}{5} =\ \textgreater \ \frac{2}{1} . \frac{5}{3}=\ \textgreater \ \frac{10}{3} : \frac{7}{3} =\ \textgreater \ \frac{30}{21} = \frac{10}{7}$

Primeiro resolvemos as divisões.

Agora a ultima parte 10/7 - 5/3:

$\frac{10}{7} - \frac{5}{3} ==\ \textgreater \ \frac{30-35}{21} = -\frac{5}{21}$

Answer 2

Vejamos: (2 : 3/5) : 7/3 - 5/3 = 2 . 5/3 : 7/3 - 5/3 = 10/3 : 7/3 - 5/3 = 10/3 . 3/7 - 5/3 = 30/21 - 5/3 = 30/21 - 35/21 = -5/21