\(=\dfrac{1}{4}-\dfrac{5}{4}+1-\dfrac{5}{6}=\dfrac{5}{6}\)
tick nha
\(25\%-\dfrac{5}{4}+1+\dfrac{5}{6}=\dfrac{1}{4}-\dfrac{5}{4}+1+\dfrac{5}{6}\)
\(=\left[\left(-1\right)+1\right]+\dfrac{5}{6}\)
\(=\dfrac{5}{6}\)
\(25\%-\dfrac{5}{4}+1+\dfrac{5}{6}\)
\(=\dfrac{1}{4}-\dfrac{5}{4}+\dfrac{6}{6}+\dfrac{5}{6}\)
\(=\dfrac{5}{6}\)