Step-by-step explanation:
area = length × width = 12 1/3 × 1 1/3
the easiest way to do this multiplication is to simply bring all to full fractions :
12 1/3 = (3×12 + 1)/3 = 37/3
1 1/3 = (3×1 + 1)/3 = 4/3
so our multiplication is
37/3 × 4/3 = 37×4/(3×3) = 148/9 = 16 4/9 m²
