Answer
$\frac{12}{t^{2}}$
Work Step by Step
To find the product you must multiply the numerators and multiply the denominators
$\frac{3}{t}\times\frac{4}{t}$
$3\times4=12$ (multiplying numerators)
$t\times t=t^{2}$ (multiplying denominators)
so the answer is $\frac{12}{t^{2}}$
