  In the framework of generalized Oppenheim expansions we prove strong law of
large numbers for lightly trimmed sums. In the first part of this work we
identify a particular class of expansions for which we provide a convergence
result assuming that only the largest summand is deleted from the sum; this
result generalizes a strong law recently proven for the Luroth case. In the
second part we drop any assumptions concerning the structure of the Oppenheim
expansions and we prove a result concerning trimmed sums when at least two
summands are trimmed; then we derive a corollary for the case in which only the
largest summand is deleted from the sum.
