Final answer:
To determine which numbers are greater than or equal to 4/7, compare each to 4/7 and convert them to decimals. The numbers that are greater than or equal to 4/7 are 0.57 and 2/3.
Step-by-step explanation:
To determine which of the given numbers are greater than or equal to 4/7, we need to compare each of them to 4/7.
- 2/5 is less than 4/7 because when we convert both fractions to decimals, 2/5 = 0.4 and 4/7 ≈ 0.571.
- 0.57 is greater than 4/7, because 0.57 > 0.571 (rounded to three decimal places).
- 2/3 is also greater than 4/7. To verify this, we can convert them both to decimals, 2/3 = 0.667 and 4/7 ≈ 0.571.
Therefore, the numbers that are greater than or equal to 4/7 are 0.57 and 2/3.