Question

Rút gọn:

\(\frac{125.40.64}{25.7.1024}\)

Answer 1

5.40.1/1.7.16

=200/112 gần bằng 2

Answer 2

\(\frac{125.40.64}{25.7.1024}=\frac{5^3.2^3.5.2^6}{5^2.7.2^{10}}=\frac{5^4.2^9}{5^2.7.2^{10}}=\frac{5^2}{7.2}=\frac{25}{14}\)

OK

Answer 3

Rút gọn:

\(\frac{125.40.64}{25.7.1024}\)

\(=\frac{25.5.4.2.5.64}{25.7.64.4.2.2}\) \(=\frac{5.5}{7.2}\) \(=\frac{25}{14}\)