A simple algorithm of 75 15 / 16 times [- 8] (71 + 15 / 16) * (- 8) = 71 * (- 8) + 15 / 16 * (- 8) = - 568-7.5 = - 575.5 this method is not needed, but another simple calculation is needed

A simple algorithm of 75 15 / 16 times [- 8] (71 + 15 / 16) * (- 8) = 71 * (- 8) + 15 / 16 * (- 8) = - 568-7.5 = - 575.5 this method is not needed, but another simple calculation is needed

70*(-8)+1*(-8)+15*(1/16)*(-8)=-560-8-7.5=-575.5
Or (71 * 16 + 15) * (- 8) = (1136 + 15) * (- 8) = - 575.5