Question

[Nguyễn Quang Huy]

Tính nhanh

a) (\(\frac{377}{-231}-\frac{123}{89}+\frac{34}{791}\)) . ( \(\frac{1}{6}-\frac{1}{8}-\frac{1}{24}\))

Answer 1

[Arima Kousei]

Ta có : 

\(\left(\frac{377}{-231}-\frac{123}{89}+\frac{34}{791}\right).\left(\frac{1}{6}-\frac{1}{8}-\frac{1}{24}\right)\)

\(=A.\left(\frac{4}{24}-\frac{3}{24}-\frac{1}{24}\right)\)

\(=A.0\)

\(=0\)

Chúc bạn học tốt !!!! 

Answer 2

[Hoàng Nguyễn Văn]

\(=\left(\frac{377}{-231}-\frac{123}{89}+\frac{34}{791}\right)\cdot0=0\)