\(\left(1\right)\frac{121.75.130.169}{39.60.11.198}\)
\(=\frac{121.15.5.13.10.13.13}{13.3.15.4.11.18.11}\)
\(=\frac{121.5.13^2.10}{3.4.18.121}\)
\(=\frac{50.196}{12.18}\)
\(=\frac{9800}{216}=\frac{1225}{27}\)
\(\left(2\right)\frac{135.350+135.550}{900.100+35.900}\)
\(=\frac{135.\left(350+550\right)}{900.\left(100+35\right)}\)
\(=\frac{135.900}{900.135}=1\)
HOK TOT
1)=11^2.15.5.13.10.169/13.3.15.4.11.198
=5.10.169/3.4.18
=8450/216=4225/108
2)=135.(350+550)/900.(100+35)
=135.900/900.135=1