Identify Decimal Parts: Identify the integer and decimal part of the decimal number 7.91.Decimal number: 7.91Integer part: 7Decimal part: 0.91
Determine Rounding Direction: Determine if the decimal part is less than or equal to0.5 or greater than 0.5 to decide whether to round down or up.The decimal part 0.91 is greater than 0.5, so we round up the decimal number 7.91.
Round to Nearest Whole Number: Round 7.91 to the nearest whole number.Since the decimal part is greater than 0.5, we add 1 to the integer part 7 to get 8.7.91 rounded to the nearest whole number is 8.