Question

\(40\div\left\{\left[11+\left(26-3^3\right)\right]\times2\right\}\)                                        \(|\frac{3}{5}|\times4\frac{1}{7}+|\frac{-6}{7}|\times\frac{3}{5}\)

Tính nhanh nếu có thể

Answer 1

+) \(40\div\left\{\left[11+\left(26-27\right)\right]\times2\right\}\)

\(=40\div\left(10\times2\right)=2\)

+) \(\left|\frac{3}{5}\right|\times4\frac{1}{7}+\left|\frac{-6}{7}\right|\times\frac{3}{5}\)

\(=\frac{3}{5}\times\frac{29}{7}+\frac{6}{7}\times\frac{3}{5}=\frac{3}{5}\times\left(\frac{29}{7}+\frac{6}{7}\right)=\frac{3}{5}\times5=3\)