What is the fringe spacing formula used to calculate the distance between interference fringes in a double-slit experiment?

The fringe spacing formula used to calculate the distance between interference fringes in a double-slit experiment is given by the equation: d L / D, where d is the fringe spacing, is the wavelength of light, L is the distance between the double-slit and the screen, and D is the distance between the two slits.