In this article, generalized versions of the
k
-fractional Hadamard and Fejér-Hadamard inequalities are constructed. To obtain the generalized versions of these inequalities,
k
-fractional integral operators including the well-known Mittag-Leffler function are utilized. The class of (
p
,
h
)-convex functions for Hadamard-type inequalities give the generalizations of results which have been proved in literature for
p
-convex,
h
-convex, and several functions deducible from these two classes.