Sau khi rút gọn, phân số \(\dfrac{4116-14}{10290-35}\) bằng
\(\dfrac{2}{5}\). \(\dfrac{1}{5}\). \(\dfrac{3}{5}\). \(\dfrac{3}{7}\). Hướng dẫn giải:\(\dfrac{4116-14}{10290-35}\)
\(=\dfrac{294.14-14}{294.35-35}\)
\(=\dfrac{14.\left(294-1\right)}{35\left(294-1\right)}\)
\(=\dfrac{14}{35}=\dfrac{2}{5}\)
