We tackle the problem of nonlinear fractional integrodifferential equations with starting conditions using Legendre alternative functions in this study. To solve these equations, a new set of Legendre-alternative functions composed of Legendre-alternative polynomials is utilized. To solve these equations, a new set of Legendre-alternative functions composed of Legendre-alternative polynomials is utilized. The approach entails first constructing the Riemann-Liouville operational matrix, which has all of these fractional functions as components and then solving these equations using this matrix and the method of local points derived from the roots of Legendre polynomials. Then, the integral-differential fractions of Volta-Fredelm and Volta fractions are solved using the Haar wavelet. The Hare approach converts these equations into a system of linear algebraic equations that the Gaussian elimination method solves. The convergence of these two techniques is then investigated
