Simplify the fraction $ \frac{64}{36} $ and determine if it is a perfect square fraction.

Can the fraction $ \frac{1}{49} $ be considered a perfect square fraction?

Which of the following is a perfect square fraction: $ \frac{49}{36} $ or $ \frac{8}{27} $?

Is $ \frac{81}{100} $ a perfect square fraction?

Is $ \frac{9}{4} $ a perfect square fraction?