Question

-1supra 8-(-11 supra 24)

Answer 1

-1supra 8-(-11 supra 24)(-3+11)/24=8/24=1/3

Answer 2

$\displaystyle - \frac{1}{8} - \left(- \frac{11}{24} \right )=- \frac{1}{8} + \frac{11}{24} =- \frac{3}{24} + \frac{11}{24} = \frac{8}{24} = \frac{1}{3}$