`25% - 1``1/2` `- (-1/2)^2 + 0,25 : 1/12`
`= 1/4 - 3/2 - 1/4 + 1/4 : 1/12`
`= -5/4 - 1/4 + 3`
`= -3/2 + 3`
`= -3/2 + 6/2`
`= 3/2`
\(25\%-1\dfrac{1}{2}-\left(-\dfrac{1}{2}\right)^2+0,25:\dfrac{1}{12}\)
\(=\dfrac{1}{4}-\dfrac{3}{2}-\dfrac{1}{4}+\dfrac{1}{4}\cdot12\)
\(=\dfrac{1}{4}-\dfrac{3}{2}-\dfrac{1}{4}+3\)
\(=\dfrac{1}{4}+\left(\dfrac{3}{2}-\dfrac{1}{4}\right)\)
\(=\dfrac{1}{4}+\dfrac{5}{4}\)
\(=\dfrac{6}{4}\)
\(=\dfrac{3}{2}\)
Nếu mình làm đúng thì tick mình nhé!
`25% - 1 1/2 - (-1/2)^2 + 0,25 : 1/12`
`=> 1/4 - 3/2 + 1/4 + 1/4 xx 12`
`=> -5/4 + 1/4 + 3`
`=> -1 + 3`
`=> 2`
