Question

a/ 1 phần 8 : (x-1) = 1 phần 4

 

Answer 1

`1/8` : ( `x` - `1` ) = `1/4`

⇒        `x` - `1`    = `1/8` : `1/4` 

⇒        `x` - `1`     = `1/2`

⇒        `x`            = `1/2` + `1`

⇒      `x`              = `3/2`

Answer 2

\(\dfrac{1}{8}:\left(x-1\right)=\dfrac{1}{4}\\ x-1=\dfrac{1}{8}:\dfrac{1}{4}\\ x-1=\dfrac{1}{8}\times\dfrac{4}{1}\\ x-1=\dfrac{1}{2}\\ x=\dfrac{1}{2}+1\\ x=\dfrac{1}{2}+\dfrac{2}{2}\\ x=\dfrac{3}{2}\)

Answer 3

3/2