Three.
\(\frac{3/4}{1/4}\)
They've got the same denominator, so you can act like the nominators are whole numbers and simply divide those. Or...
\(\frac{3}{4}\) × \(\frac{1}{4}\)
Cross multiply, so 1 times 4 and 4 times 3.
\(\frac{12}{4}\)
And then divide to get 3.