\(G=\left(\dfrac{\dfrac{2}{5}-\dfrac{2}{9}+\dfrac{2}{11}}{\dfrac{7}{5}-\dfrac{7}{9}+\dfrac{7}{11}}-\dfrac{\dfrac{1}{3}-\dfrac{1}{4}+\dfrac{1}{5}}{1\dfrac{1}{6}-\dfrac{7}{8}+\dfrac{7}{10}}\right):\dfrac{2024}{2025}\)
\(=\left(\dfrac{2\left(\dfrac{1}{5}-\dfrac{1}{9}+\dfrac{1}{11}\right)}{7\left(\dfrac{1}{5}-\dfrac{1}{9}+\dfrac{1}{11}\right)}-\dfrac{\dfrac{1}{3}-\dfrac{1}{4}+\dfrac{1}{5}}{\dfrac{7}{6}-\dfrac{7}{8}+\dfrac{7}{10}}\right):\dfrac{2024}{2025}\)
\(=\left(\dfrac{2}{7}-\dfrac{\dfrac{1}{3}-\dfrac{1}{4}+\dfrac{1}{5}}{\dfrac{7}{2}\left(\dfrac{1}{3}-\dfrac{1}{4}+\dfrac{1}{5}\right)}\right):\dfrac{2024}{2025}\)
\(=\left(\dfrac{2}{7}-1:\dfrac{7}{2}\right)\cdot\dfrac{2025}{2024}\)
=0
Hơi khó nhìn xin thông cảm
Giải:
={2/7-1/3-1/4+1/5 / 7/2×(1/3-1/4+1/5)}: 2024/2025
=(2/7-1:7/2)×2024/2025
= 0. x 2024/2025
= 0
