Question

\(\dfrac{7}{13}\) : \(x\) = \(\dfrac{14}{39}\)

 

\(x\) x \(\dfrac{3}{5}\) = \(\dfrac{14}{15}\)

Answer 1

`#3107`

`7/13 \div x = 14/39`

`=> x = 7/13 \div 14/39`

`=> x = 3/2`

Vậy, `x = 3/2`

________

`x \times 3/5 = 14/15`

`=> x = 14/15 \div 3/5`

`=> x = 14/9`

Vậy, `x=14/9.`

Answer 2

\(\dfrac{7}{13}:x=\dfrac{14}{39}\)

\(x=\dfrac{7}{13}:\dfrac{14}{39}\)

\(x=\dfrac{7}{13}\times\dfrac{39}{14}\)

\(x=\dfrac{3}{2}\)

___

\(x\times\dfrac{3}{5}=\dfrac{14}{15}\)

\(x=\dfrac{14}{15}:\dfrac{3}{5}\)

\(x=\dfrac{14}{15}\times\dfrac{5}{3}\)

\(x=\dfrac{14}{9}\)

Answer 3

` 7/13 : x = 14/39 `

 

`           x = 7/13 : 14/39 `

 

`           x =  7/13 xx 39/14`

 

`          x = 3/2`

 

Vậy ` x=  3/2.`

 

 

` x xx 3/5 = 14/15 `

 

` x = 14/15 : 3/5 `

 

` x = 14/15 xx 5/3 `

 

` x = 14/9` 

 

Vậy ` x = 14/9.`