Question

12 11/30+11 7/24-12 11/12

Answer 1

$12 frac{11}{30} +11 frac{7}{24} -12 frac{11}{12} = frac{371}{30} +frac{271}{24} - frac{155}{12} = frac{371}{30} +frac{271-310}{24} = frac{371}{30} -frac{39}{24}= \ \ = frac{371}{30} -frac{39}{24}= frac{1484-195}{120} = frac{1289}{120} =10 frac{89}{120}$