  The electronic properties of graphene are described by a Dirac Hamiltonian
with a fourfold symmetry of spin and valley. This symmetry may yield novel
fractional quantum Hall (FQH) states at high magnetic field depending on the
relative strength of symmetry breaking interactions. However, observing such
states in transport remains challenging in graphene, as they are easily
destroyed by disorder. In this work, we observe in the first two Landau levels
(v<6) the composite-fermion sequences of FQH states at p/(2p+1) between each
integer filling factor. In particular, odd numerator fractions appear between
v=1 and v=2, suggesting a broken valley symmetry, consistent with our
observation of a gap at charge neutrality and zero field. Contrary to our
expectations, the evolution of gaps in a parallel magnetic field suggests that
states in the first Landau level are not spin-polarized even up to very large
out of plane fields.
