To round 6.7 to the nearest whole number, follow these steps:
Identify the decimal part: In the number 6.7, the first digit after the decimal point is 7.
Apply rounding rules: Since the first digit after the decimal point (7) is greater than or equal to 5, you round the number up by 1.
Final rounded result: The number becomes 7.
Thus, 6.7 rounded to the nearest whole number is 7.