Question

4/9chia(-1/7)+6 5/9+6 5/19chia(-1/7)

Answer 1

   \(\dfrac{4}{9}\) : \(\left(-\dfrac{1}{7}\right)\) + \(6\dfrac{5}{9}\) + \(6\dfrac{5}{19}\) : \(\left(-\dfrac{1}{7}\right)\)

= \(\dfrac{4}{9}\) . \(\left(-\dfrac{7}{1}\right)\) + \(\dfrac{59}{9}\) + \(\dfrac{119}{19}\) . \(\left(-\dfrac{7}{1}\right)\)

= \(\dfrac{-28}{9}\) + \(\dfrac{59}{9}\) + \(\dfrac{-833}{19}\)

= \(\dfrac{31}{9}\) + \(\dfrac{-833}{19}\)

= \(\dfrac{589}{171}\) + \(\dfrac{-7497}{171}\)

= \(\dfrac{-6908}{171}\)

 

 

Answer 2

nhanh

 

Answer 3

4​ : (−17)(−71​) + 659695​ + 65196195​ : (−17)(−71​)

= 4994​ . (−71)(−17​) + 599959​ + 1191919119​ . (−71)(−17​)

= −2899−28​ + 599959​ + −8331919−833​

= 319931​ + −8331919−833​

= 589171171589​ + −7497171171−7497​

= −6908171171−6908​