Question

Tìm X biêt :

X-7/12 : 21/18 = 1/2

Answer 1

\(x=\dfrac{1}{2}+\left(\dfrac{7}{12}:\dfrac{21}{18}\right)=\dfrac{1}{2}+\left(\dfrac{7}{12}\times\dfrac{18}{21}\right)=\dfrac{1}{2}+\dfrac{1}{2}=\dfrac{2}{2}=1\)

Answer 2

X-7/12 : 21/18 = 1/2

X-7/12             =1/2 x21/18

X-7/12             =7/12

X                      = 7/12 + 7/12

X                      = 7/6

Answer 3

X-7/12 : 21/18 = 1/2

X-7/12 = 1/2 x 21/18

X-7/12 = 7/12

X=7/12+7/12

X=14/12

X=7/6

Answer 4

`x- 7/12:21/18=1/2`

`x- 7/12 × 18/21=1/2`

`x - 1/2 = 1/2`

`x = 1/2 + 1/2`

`x = 1`

Answer 5

x - 7/12 : 21/18 = 1/2

x - 7/12 × 18/21 = 1/2

x - 7/12 × 6/7 = 1/2

x - 1/2 = 1/2

x = 1/2 + 1/2

x = 1