Asked in Personal Finance, Math and Arithmetic, Periods Exclamation Points and Question Marks, Percentages, Fractions, and Decimal Values
Personal Finance
Math and Arithmetic
Periods Exclamation Points and Question Marks
Percentages, Fractions, and Decimal Values

What does 13 equal in a decimal? 10/05/2007

13.0

Answer "13" is a decimal value IF by "13" you mean 13 in our base-10 numbering system. In this system, the 3 in 13 stands for 3 units, and the 1 in 13 stands for 1 ten. Combining the 1 ten and the 3 units gives 10 + 3 = 13. We also say that 13 is a decimal value because it contains no nondecimal (non-base-10) fractional parts. You could write 13 as 13.0 if you wish. Whole numbers in our base-10/decimal system are always decimal values, by definition. Examples:

13 1/4 is not a decimal value; 13.25 is.

13 2/10 is a decimal value, actually, but not in a decimal representation.

13.2 means the same thing as 13 2/10, but in a decimal representation.

13 1/3 cannot be represented as a pure decimal; it equals 13.3333... (etc.)

"13" could be a number representation of a value in a number system other than base 10. For example, 13 is a value in the hexadecimal (base 16) number system. 13 hex = (1x16)+(3x1) = 19.