\(\dfrac{1}{6}+\dfrac{2}{3}\times\dfrac{8}{9}\)
\(=\dfrac{1}{6}+\dfrac{2\times8}{3\times9}\)
\(=\dfrac{1}{6}+\dfrac{16}{27}\)
\(=\dfrac{1\times9}{6\times9}+\dfrac{16\times2}{27\times2}\)
\(=\dfrac{9}{54}+\dfrac{32}{54}\)
\(=\dfrac{9+32}{54}\)
\(=\dfrac{41}{54}\)
Đúng 3
Bình luận (1)
\(\dfrac{1}{6}\) + \(\dfrac{2}{3}\) x \(\dfrac{8}{9}\) = \(\dfrac{41}{54}\)
Đúng 0
Bình luận (0)
