2 1/12 * 0,8;

1. Convert 0.8 to a fraction: 0.8 = 8/10 = 4/5.
2. Convert the mixed number to an improper fraction: 2 1/12 = 25/12.
3. Multiply the fractions: (25/12) * (4/5) = 100/60 = 5/3.