The fraction 5/8 is not a whole number. Whole numbers are numbers without fractions or decimals, starting from 0 and going up (0, 1, 2, 3, …). When you divide 5 by 8, the result is 0.625, which is a decimal and still not a whole number.
To illustrate, if you need to convert the fraction into a decimal, you divide the numerator (5) by the denominator (8). This gives you:
5 ÷ 8 = 0.625
Since 0.625 is less than 1, it confirms that 5/8 does not round up to a whole number either. The closest whole number to 5/8 is 1, but 5/8 itself remains a fraction and hence not classified as a whole number.