Question

\(C=\frac{21^2.14.126}{35^5.6}\)

Tính C

Answer 1

\(\frac{21^2.14.126}{35^5.6}\)

\(=\frac{21^2.14.21.6}{35^5.6}\)

\(=\frac{3^3.7^3.7.2}{35^5}\)

\(=\frac{3^3.7^4.2}{5^4.7^4.35}\)

\(=\frac{9.2}{5^4.35}=\frac{18}{21875}\)

Answer 2

\(C=\frac{21^2.14.126}{35^5.6}=\frac{3^2.7^2.2.7.2.3^2.7}{5^5.7^5.2.3}=\frac{3^4.7^4.2^2}{5^5.7^5.2.3}=\frac{3^3.1.2}{5^5.4.1.1}=\frac{54}{12500}=\frac{27}{6250}\)