0.8 as a Fraction
0.8 = 4/5
0.8 as a fraction in simplest form is 4/5.
Step by step
- 0.8 has 1 decimal place, so write it over 10: 8/10.
- Find the greatest common divisor of 8 and 10: 2.
- Divide the top and bottom by 2: 8 ÷ 2 = 4, 10 ÷ 2 = 5.
- So 0.8 = 4/5.
Details
- Fraction
- 4/5
- Percent
- 80%
- Nearest 1/16 (tape measure)
- 13/16
- Reciprocal
- 5/4 ≈ 1.25
How it works
To turn a decimal into a fraction, count the digits after the decimal point, write the digits over 10, 100, 1,000 and so on, then simplify by dividing the numerator and denominator by their greatest common divisor. A decimal that ends (terminates) always converts to an exact fraction; a decimal that repeats forever, such as 0.333…, equals a fraction like 1/3.
Nearby values
Related conversions
Frequently asked questions
What is 0.8 as a fraction?
0.8 is 4/5 in simplest form.
How do you convert 0.8 to a fraction?
Write 0.8 as 8/10, then divide the top and bottom by 2 to get 4/5.
What is 0.8 as a percentage?
0.8 × 100 = 80%.
Is 4/5 in simplest form?
Yes — 4 and 5 have no common factor other than 1.