Question

4/5 cộng 5/6 : x= 1/6

giúp vs ạ!!!!

Answer 1

5/6 : x= 1/6 - 4/5 

5/6 : x= -19/30

x = 5/6 : (-19)/30

x = -25/19

Answer 2

\(x=\dfrac{5}{6}:\left(\dfrac{1}{6}-\dfrac{4}{5}\right)=\dfrac{5}{6}:\left(-\dfrac{19}{30}\right)=-\dfrac{25}{19}\)

Answer 3

\(\dfrac{5}{6}:x=\dfrac{1}{6}-\dfrac{4}{5}\)
\(\dfrac{5}{6}:x=-\dfrac{19}{30}\)
      \(x=\dfrac{5}{6}:\left(-\dfrac{19}{30}\right)\)
      \(x=-\dfrac{25}{19}\)

Answer 4

\(\dfrac{4}{5}+\dfrac{5}{6}\div x=\dfrac{1}{6}\)

        \(\dfrac{5}{6}\div x=\dfrac{1}{6}-\dfrac{4}{5}\)

        \(\dfrac{5}{6}\div x=\dfrac{1}{6}+\left(\dfrac{-4}{5}\right)=\dfrac{-19}{30}\)

                \(x=\dfrac{5}{6}\div\left(\dfrac{-19}{30}\right)\)

                \(x=\dfrac{5}{6}\times\dfrac{-30}{19}=\dfrac{-25}{19}\)