Question

a. x/16=1/4     b. x-4/8=20/32    c. 6/7=48/x      d. 4/7+x =7/8-1/4

Answer 1

a: x/16=1/4

=>x=1/4x16=4

b: =>x-4/8=5/8

=>x=9/8

c: =>48/x=48/56

hay x=56

d: =>x+4/7=7/8-2/8=5/8

=>x=5/8-4/7=35/56-32/56=3/56

Answer 2

a.

\(\dfrac{x}{16}=\dfrac{1}{4}\)

 => x = 1/4 . 16 = 4

b.

\(x-\dfrac{4}{8}=\dfrac{20}{32}\)

<=> \(x-\dfrac{16}{32}=\dfrac{20}{32}\)

=> \(x=\dfrac{20}{32}+\dfrac{16}{32}=\dfrac{36}{32}=\dfrac{9}{8}\)

Answer 3

`a)x/16=1/4`

`x=16:4`

`x=4`

`4/16=1/4`

`b)x-4/8=20/32`

`x-4/8=5/8`

`x=5/8+4/8`

`x=9/8`

`c)6/7=48/x`

`x=48:6`

`x=8`

`6/7=(6xx8)/(7xx8)=48/56`

`d)4/7+x=7/8-1/4`

`4/7+x=7/8-2/8`

`4/7+x=5/8`

`x=5/8-4/7`

`x=35/56-32/56`

`x=2/56=1/28`