Question

\(\dfrac{3}{8}+2\dfrac{5}{8}\text{×}x=\dfrac{5}{4}\) 

Giá trị của \(x\) là:

Answer 1

`(3)/(8)+2(5)/(8)xx x=5/4`

`2(5)/(8)xx x=(5)/(4)-(3)/(8)`

`(21)/(8)xx x=7/8`

`x =(7)/(8):(21)/(8)`

`x=1/3`

Answer 2

=>21/8x=5/4-3/8=10/8-3/8=7/8

=>x=7/8:21/8=7/8x8/21=1/3

Answer 3

21/8.x=3/8+5/4

x=13/8:21/8

x=13/21

Answer 4

`3/8 + 2 5/8 xx x = 5/4`

`2 5/8 xx x = 5/4 - 3/8`

`21/8 xx x = 7/8`

`x = 7/8 : 21/8`

`x = 7/8 xxx 8/21`

`x = 7/21`

`x = 1/3`

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