What is 80% as a fraction?

80% as a fraction is 4/5. Percent means per hundred, so start with 80/100, then divide top and bottom by 20.

What is 80% as a decimal?

80% is 0.8 as a decimal. Dividing a percentage by 100 moves the point two places to the left.

80% as a fraction

Fraction4/5lowest terms

Decimal0.8

Percent80%

How to get there

Percent means per hundred, so 80% is 80/100.
Divide top and bottom by their greatest common divisor, 20: 4/5.

80 of 100 squares. A percentage IS a count of hundredths, which is why the grid is the whole story.

Common questions

What is 80% as a fraction?: 80% as a fraction is 4/5. Percent means per hundred, so start with 80/100, then divide top and bottom by 20.
What is 80% as a decimal?: 80% is 0.8 as a decimal. Dividing a percentage by 100 moves the point two places to the left.

The same number, other ways

4/5Everything about the fraction: equivalents, the bar model, the number line.0.8The same value as a decimal, with its own derivation.Percent → fraction chartThe whole lookup table, printable.Percent converterAny percentage, including forms like 12 1/2%.

Where this comes from. Exact rational arithmetic on the values shown — fractions are pairs of integers until display, and inch–metric conversion uses 25.4 mm to the inch, exact by definition since 1959. See the full methodology.