\(\left(-\dfrac{3}{4}+\dfrac{1}{6}\right):\left(\dfrac{5}{9}-\dfrac{1}{6}\right)\)
\(=\left(-\dfrac{9}{12}+\dfrac{2}{12}\right):\left(\dfrac{10}{18}-\dfrac{3}{18}\right)\)
\(=-\dfrac{7}{12}:\dfrac{7}{18}\)
\(=-\dfrac{7\times18}{12\times7}\)
\(=-\dfrac{18}{12}\)
\(=-\dfrac{3}{2}\)
#Sahara |