4.5 as a Fraction
The decimal 4.5 written as a fraction in simplest form.
4.5 as a fraction
9/2
= 4 1/2 as a mixed number · 450% as a percentage
How it works
- Write 4.5 over a power of 10: 45/10
- Divide the top and bottom by their greatest common factor to reduce it to 9/2
- As a mixed number: 4 1/2
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Frequently asked questions
What is 4.5 as a fraction?+
4.5 as a fraction is 9/2 in simplest form. As a mixed number that is 4 1/2.
How do you convert 4.5 to a fraction?+
Write the decimal over a power of 10 — 4.5 = 45/10 — then divide the top and bottom by their greatest common factor to reduce it to 9/2.