Question

which of the fractions below are squares?

$1) \frac{4}{15} \\ \\ 2) \frac{8}{9} \\ \\ 3) \frac{16}{25} \\ \\ 4)2 \frac{1}{4} \\ \\ 5)4 \frac{1}{9} \\ \\ 6) \frac{8}{18}$
​

Answer 1

2 4/1 is 9 which is a perfect square