Question

\(\dfrac{-7}{9}+\dfrac{-2}{9}\)

\(\dfrac{15}{4}-\dfrac{-3}{4}\)

\(\dfrac{1}{6}-\dfrac{1}{36}\)

\(1-\dfrac{3}{2}\)

\(2-\dfrac{4}{5}\)

Answer 1

\(\dfrac{-7}{9}+\dfrac{-2}{9}=\dfrac{-9}{9}=-1\)

\(\dfrac{15}{4}-\dfrac{-3}{4}=\dfrac{18}{4}=\dfrac{9}{2}\)

\(\dfrac{1}{6}-\dfrac{1}{36}=\dfrac{6}{36}-\dfrac{1}{36}=\dfrac{5}{36}\)

\(1-\dfrac{3}{2}=\dfrac{2}{2}-\dfrac{3}{2}=\dfrac{-1}{2}\)

\(2-\dfrac{4}{5}=\dfrac{10}{5}-\dfrac{4}{5}=\dfrac{6}{5}\)