`3/4 : x =1 1/2`
`=> 3/4 : x= 3/2`
`=>x= 3/4 : 3/2`
`=>x= 3/4 xx 2/3`
`=> x= 6/12`
`=> x= 1/2`
Vậy `x=1/2`
Thay `5/8-x` thì
`5/8-1/2= 5/8- 4/8=1/8`
\(\dfrac{3}{4}:x=1\dfrac{1}{2}\)
\(\dfrac{3}{4}:x=\dfrac{3}{2}\)
\(x=\dfrac{3}{4}:\dfrac{3}{2}\)
\(x=\dfrac{1}{2}\)
Vậy: \(\dfrac{5}{8}-x=\dfrac{5}{8}-\dfrac{1}{2}=\dfrac{1}{8}\)
\(\dfrac{3}{4}:x=1\dfrac{1}{2}\)
\(x=\dfrac{3}{4}\times\dfrac{2}{3}\)
\(x=\dfrac{1}{2}\)
\(\dfrac{5}{8}-x\)
\(=>\dfrac{5}{8}-\dfrac{1}{2}=\dfrac{5}{8}-\dfrac{4}{8}=\dfrac{1}{8}\)
