0.5 as a Fraction

0.5 as a fraction1/2
Fraction
1/2
Percent
50%

Exact fraction = decimal digits over a power of ten, reduced by the greatest common divisor.

0.5 = 1/2

0.5 as a fraction in simplest form is 1/2.

Step by step

  1. 0.5 has 1 decimal place, so write it over 10: 5/10.
  2. Find the greatest common divisor of 5 and 10: 5.
  3. Divide the top and bottom by 5: 5 ÷ 5 = 1, 10 ÷ 5 = 2.
  4. So 0.5 = 1/2.

Details

Fraction
1/2
Percent
50%
Nearest 1/16 (tape measure)
1/2
Reciprocal
2/1 ≈ 2

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

DecimalFraction
0.4623/50
0.4747/100
0.4812/25
0.4949/100
0.51/2
0.5151/100
0.5213/25
0.5353/100
0.5427/50

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Frequently asked questions

What is 0.5 as a fraction?

0.5 is 1/2 in simplest form.

How do you convert 0.5 to a fraction?

Write 0.5 as 5/10, then divide the top and bottom by 5 to get 1/2.

What is 0.5 as a percentage?

0.5 × 100 = 50%.

Is 1/2 in simplest form?

Yes — 1 and 2 have no common factor other than 1.

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