Question

Rút gọn A=\(\left(\dfrac{3}{2}-\dfrac{2}{5}+\dfrac{1}{10}\right)+\left(\dfrac{3}{2}-\dfrac{2}{3}+\dfrac{1}{12}\right)\)

Answer 1

\(A=\left(\dfrac{3}{2}-\dfrac{2}{5}+\dfrac{1}{10}\right)+\left(\dfrac{3}{2}-\dfrac{2}{3}+\dfrac{1}{12}\right)\)

\(A=\dfrac{1}{5}\)

Vậy \(A=\dfrac{1}{5}\)