  We construct high-quality graphene-based van der Waals devices with narrow
superconducting niobium nitride (NbN) electrodes, in which superconductivity
and robust fqH coexist. We find crossed Andreev reflection (CAR) across the
superconductor separating two fqH edges. Our observed CAR probabilities in the
particle-like fractional fillings are markedly higher than those in the integer
and hole-conjugate fractional fillings and depend strongly on temperature and
magnetic field unlike the other fillings. Further, we find a
filling-independent CAR probability in integer fillings, which we attribute to
spin-orbit coupling in NbN allowing for Andreev reflection between
spin-polarized edges. These results provide a route to realize novel
topological superconducting phases in fqH-superconductor hybrid devices based
on graphene and NbN.
