Write 2 1/2 as an Improper Fraction

To change a mixed number like 2 1/2 (two and one-half) to an improper fraction, follow these steps:

First, multiply the whole number (the 2) by the denominator of the fraction (the 2 in 1/2). Then add this number to the numerator (the 1 in 1/2). You end up with 5.

Second, take the denominator from the fraction 1/2. This becomes the denominator for the improper fraction.

The resulting improper fraction is 5/2.

Note that the mixed number 2 1/2 is equal to the improper fraction 5/2. The are both equal to 2.5, we've just changed the way the fractions are are represented.