\(\frac{0.36 \times 5.4 \times 0.63}{4.2 \times 9.0 \times 2.4}\) = \(\frac{36}{420} \times \frac{54}{90} \times \frac{63}{240}\) = \(\frac{6}{70} \times \frac{18}{30} \times \frac{21}{80}\) = \(\frac{27}{2000}\) = 0.0135 \(\approx\) = 0.014