What is 2.5 as a fraction?

2.5==

2.5 = 5/2 in simplest form, or 2 1/2 as a mixed number. As a percent it is 250%. On a ruler that's the 5/2" mark.

How to convert 2.5 to a fraction

There is 1 digit after the decimal point, so the last digit is in the tenths place. Write the digits over 10.
2.5 = 25/10
Simplify by dividing top and bottom by the GCF, 5.
25/10 = 5/2
As a mixed number:
2 1/2

10/4 = 15/6 = 20/8 = 25/10 = 50/20 = 5/2. All are equivalent; 5/2 is the one in lowest terms.

Convert another value with the decimal to fraction converter, or see neighbours in the fraction chart.

What is 2.5 as a fraction?

2.5 as a fraction is 5/2 (2 1/2 as a mixed number). Written over 10 it is 25/10, which simplifies to 5/2.

What is 2.5 as a percent?

2.5 × 100 = 250%.