Question

Tìm x

(x+1/2):7/8=5/7

Answer 1

(x+1/2):7/8=5/7
x+1/2=5/7x7/8
x+1/2=5/8
x=5/8-1/2
x=1/8

Answer 2

=>x+1/2=7/8 x 5/7

x=5/8-1/2

x=1/8

Answer 3

Answer 4

x=1/8

Answer 5

(x+\(\dfrac{1}{2}\))\(=\dfrac{5}{7}\times\dfrac{7}{8}\)

x        \(=\dfrac{5}{8}-\dfrac{1}{2}\)

x        \(=\dfrac{1}{8}\)

Answer 6

\(\left(x+\dfrac{1}{2}\right):\dfrac{7}{8}=\dfrac{5}{7}\) 

\(x+\dfrac{1}{2}=\dfrac{5}{7}\text{×}\left(\dfrac{7}{8}\right)\) 

\(x+\dfrac{1}{2}=\dfrac{5}{8}\) 

\(x=\dfrac{5}{8}-\dfrac{1}{2}\)

\(x=\dfrac{1}{8}\)