When working with mixed numbers, it is usually easier to convertthem to improper fractions, do the operations, and then to convertany resulting improper fraction back to a mixed number:4 1/3 + 3 3/4 = (4×3+1)/3 + (3×4+3)/4= 13/3 + 15/4= (13×4)/(3×4) + (15×3)/(4×3)= 52/12 + 45/52= 97/12= (8×12+1)/12= 8 1/12