Find the difference between two sets, namely ${\frac{7}{4}, 2, 3, -7} \setminus {1, -\frac{4}{5}, 2, -7, \frac{7}{4}, 0}$.

fst = set(((7/4), 2, 3, -7,))
snd = set((1, -(4/5), 2, -7, (7/4), 0,))
print(fst - snd)
