$\frac{9\times 42}{14\times 27}$ = $\frac{\not{9}\times 14\times \not{3}}{14\times \not{9}\times \not{3}}$ = $\frac{14}{14}$ = 1
$\frac{9\times 42}{14\times 27}$ = $\frac{\not{9}\times 14\times \not{3}}{14\times \not{9}\times \not{3}}$ = $\frac{14}{14}$ = 1