Question

giúp mk với , mk cần gấp

Answer 1

\(\dfrac{-18}{33}-\left(\dfrac{15}{-33}+1\right)\\ =\dfrac{-18}{33}-\dfrac{-15}{33}-1\\ =\left(\dfrac{-18}{33}-\dfrac{-15}{33}\right)-1\\ =\dfrac{-1}{11}-1=\dfrac{-1}{11}-\dfrac{11}{11}\\ =\dfrac{-12}{11}\)