Question

tính nhanh

9 7/25+ 3/25*7/11-7/25*14/11

9 7/25 la hon so

nhanh lên nhé!!!!!!!!!!!!!!!!!!!!

 

 

Answer 1

\(9\frac{7}{25}+\frac{3}{25}\cdot\frac{7}{11}-\frac{7}{25}\cdot\frac{14}{11}\)

\(=9\frac{7}{25}+\frac{3}{25}\cdot\frac{7}{11}-\frac{14}{25}\cdot\frac{7}{11}\)

\(=9\frac{7}{25}+\frac{7}{11}\cdot\left(\frac{3}{25}-\frac{14}{25}\right)\)

\(=9\frac{7}{25}+\frac{7}{11}\cdot\left(-\frac{11}{25}\right)\)

\(=9\frac{7}{25}+\left(-\frac{7}{25}\right)\)

\(=9\)

Chắc sai =]]

Answer 2

thank