Abstract
In this paper, we discuss the Riemann-Liouville fractional integral operator for left and right convex interval-valued functions (left and right convex I center dot V-F), as well as various related notions and concepts. First, the authors used the Riemann-Liouville fractional integral to prove Hermite-Hadamard type inequality. Furthermore, type inequalities for the product of two left and right convex I center dot V-Fs have been established. Finally, for left and right convex I center dot V-Fs, we found the Riemann-Liouville fractional integral Hermite-Hadamard type inequality (Fejer type inequality). The findings of this research show that this methodology may be applied directly and is computationally simple and precise.