Question

\(16\frac{2}{7}:\frac{-3}{5}-28\frac{2}{7}:\frac{-3}{5}\)

Answer 1

Đề tự chép lại nha!

 \(\left(16\frac{2}{7}-28\frac{2}{7}\right)\):\(\left(\frac{-3}{5}\right)\)

= -12 :\(\left(\frac{-3}{5}\right)\)

= 20

Hk tốt

Answer 2

\(16\frac{2}{7}\div\frac{-3}{5}-28\frac{2}{7}\div\frac{-3}{5}\)

\(=\left[\left(16-28\right)\frac{2}{7}\right]\div\frac{-3}{5}\)

\(=-12\frac{2}{7}\div\frac{-3}{5}\)

\(=\frac{-84}{7}\div\frac{-3}{5}\)

\(=-12\div\frac{-3}{5}\)

\(=20\)

Học tốt!!!