=1/4-5/4-(5/17+12/17)
=-1-1=-2
\(\dfrac{1}{4}-\dfrac{5}{17}-\dfrac{5}{4}-\dfrac{12}{17}\)
\(=\left(\dfrac{1}{4}-\dfrac{5}{4}\right)+\left(-\dfrac{5}{17}-\dfrac{12}{17}\right)\)
\(=-1-1\)
\(=-2\)
\(\dfrac{1}{4}-\dfrac{5}{17}-\dfrac{5}{4}-\dfrac{12}{17}=\left(\dfrac{1}{4}-\dfrac{5}{4}\right)+\left(\dfrac{-5}{17}-\dfrac{12}{17}\right)=\left(-1\right)+\left(-1\right)=-2\)
19 5/8 : 7/12 - 15 1/4 : 7/12 - (-1)^2022
tinh hop li
