Question

Question 108(ii)
Verify the property $x\times y=y\times x$ of rational numbers by using
$x=\frac{2}{3}$ and $y=\frac{9}{4}$

Answer 1

Given, $x=\frac{2}{3}$ and $y=\frac{9}{4}$
Then,
$LHS=x\times y=\frac{2}{3}\times \frac{9}{4}=\frac{18}{12}=\frac{3}{2}$

$RHS=y\times x=\frac{9}{4}\times \frac{2}{3}=\frac{18}{12}=\frac{3}{2}$

$\therefore LHS=RHS\Rightarrow x\times y=y\times x$

Hence verified.