a: \(\dfrac{3}{5}=\dfrac{3\times2}{5\times2}=\dfrac{6}{10}\)b: \(\dfrac{25}{500}=\dfrac{25:5}{500:5}=\dfrac{5}{100}\)c: \(\dfrac{11}{25}=\dfrac{11\times4}{25\times4}=\dfrac{44}{100}\)d: \(\dfrac{82}{2000}=\dfrac{82:2}{2000:2}=\dfrac{41}{1000}\)Câu trả lời: a: \(\dfrac{3}{5}=\dfrac{3\times2}{5\times2}=\dfrac{6}{10}\)b: \(\dfrac{25}{500}=\dfrac{25:5}{500:5}=\dfrac{5}{100}\)c: \(\dfrac{11}{25}=\dfrac{11\times4}{25\times4}=\dfrac{44}{100}\)d: \(\dfrac{82}{2000}=\dfrac{82:2}{2000:2}=\dfrac{41}{1000}\)