Question

8\(\dfrac{2}{9}\)-(4\(\dfrac{2}{9}\)-5\(\dfrac{1}{2}\))

chỉ mik với

Answer 1

8\(\dfrac{2}{9}\) - (4\(\dfrac{2}{9}\) - 5\(\dfrac{1}{2}\))

= \(\dfrac{74}{9}\) - (\(\dfrac{38}{9}\) - \(\dfrac{11}{2}\))

= (\(\dfrac{74}{9}\) - \(\dfrac{38}{9}\)) + \(\dfrac{11}{2}\)

= \(\dfrac{36}{9}\) + \(\dfrac{11}{2}\)

= \(\dfrac{171}{18}\)

Answer 2

\(8\dfrac{2}{9}-\left(4\dfrac{2}{9}-5\dfrac{1}{2}\right)\)

\(=\dfrac{74}{9}-\dfrac{38}{9}+\dfrac{11}{2}\)

\(=\dfrac{36}{9}+\dfrac{11}{2}\)

\(=4+\dfrac{11}{2}\)

\(=\dfrac{19}{2}\)