Question

tìm x

Answer 1

`11/12 - 5/12:x=3/8`

`5/12:x=11/12-3/8`

`5/12:x=22/24-9/24`

`5/12:x=13/24`

`x=5/12:13/24`

`x=5/12 . 24/13`

`x=10/13`

_______________________

`x:3/4-(1/2+1/4+1/8)=2`

`x:3/4-(4/8+2/8+1/8)=2`

`x:3/4 -7/8=2`

`x:3/4 = 2+7/8`

`x:3/4 = 16/8+7/8`

`x:3/4 = 23/8`

`x=23/8 xx 3/4`

`x=69/32`

Vậy `x=69/32`

Answer 2

d) \(\dfrac{11}{12}-\dfrac{5}{12}:x=\dfrac{3}{8}\)

\(\dfrac{5}{12}:x=\dfrac{11}{12}-\dfrac{3}{8}\)

\(\dfrac{5}{12}:x=\dfrac{13}{24}\)

\(x=\dfrac{5}{12}:\dfrac{13}{24}\)

\(x=\dfrac{10}{13}\)

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

\(x:\dfrac{3}{4}-\dfrac{7}{8}=2\)

\(x:\dfrac{3}{4}=2+\dfrac{7}{8}\)

\(x:\dfrac{3}{4}=\dfrac{23}{8}\)

\(x=\dfrac{23}{8}\times\dfrac{3}{4}\)

\(x=\dfrac{69}{32}\)