Question

1/5:x=1/5+1/7 giúp mik với mik cần gấp ạ

 

Answer 1

\(\dfrac{1}{5}:x=\dfrac{7}{35}+\dfrac{5}{35}\)

\(\dfrac{1}{5}:x=\dfrac{12}{35}\)

\(x=\dfrac{1}{5}:\dfrac{12}{35}\)

\(x=\dfrac{1}{5}\times\dfrac{35}{12}\)

\(x=\dfrac{7}{12}\)

Answer 2

1/5 : x = 1/5 + 1/7

1/5 : x = 12/35

x = 1/5 : 12/35

x = 7/12

Answer 3

\(\dfrac{1}{5}:x=\dfrac{12}{35}\)

\(x=\dfrac{1}{5}:\dfrac{12}{35}\)

\(x=\dfrac{7}{12}\)

Answer 4

\(\dfrac{1}{5}:x=\dfrac{1}{5}+\dfrac{1}{7}\)

\(\dfrac{1}{5}:x=\dfrac{12}{35}\)

\(x=\dfrac{1}{5}:\dfrac{12}{35}\)

\(x=\dfrac{35}{60}=\dfrac{7}{12}\)

Answer 5

1/5 :x = 1/5 +1/7 
1/5: x = 12/35
7/35: x = 12/35
=> 7 : x  = 12
          x = 7 : 12 
          x = 0,583333333333333333333