Two and one half can be written in numbers in two common ways: as a mixed number (2 1/2) or as an improper fraction (5/2).
Mixed Number Representation
The most common way to write "two and one half" is as a mixed number:
- 2 1/2
This represents 2 whole units plus one half of a unit.
Improper Fraction Representation
Alternatively, "two and one half" can be represented as an improper fraction:
- 5/2
This means five halves. To convert the mixed number to an improper fraction, you can do the following:
- Multiply the whole number (2) by the denominator (2): 2 * 2 = 4
- Add the numerator (1): 4 + 1 = 5
- Place the result (5) over the original denominator (2): 5/2
Both 2 1/2 and 5/2 represent the same value.