Simplest form answer

64/80 Simplified = 4/5

64/80 in simplest form is 4/5, found by dividing 64 and 80 by their greatest common factor, 16. As a decimal 4/5 is 0.8, and as a percent it is 80%.

Simplified

4/5

Decimal

0.8

Percent

80%

Step-by-step GCF reduction

1. Find the greatest common factor.

The GCF of 64 and 80 is 16.

2. Divide the numerator and denominator by the GCF.

64 ÷ 16 = 4

80 ÷ 16 = 5

3. Write the result.

64/80 simplified is 4/5.

Decimal and percentage equivalents

Decimal equivalent

4/5 = 0.8

Percentage equivalent

4/5 = 80%

Visual fraction bar

80%

The filled part represents 4/5 of one whole.

Cite this result

Quoting this answer in homework, a lesson plan, or an article? Copy a ready-made citation.

64/80 in simplest form is 4/5, found by dividing 64 and 80 by their greatest common factor, 16.
ILoveFractions, https://www.ilovefractions.com/tools/fraction-simplifier/64-80/, retrieved September 2, 2026

APA

ILoveFractions. (2026). 64/80 Simplified = 4/5. ILoveFractions.com. Retrieved September 2, 2026, from https://www.ilovefractions.com/tools/fraction-simplifier/64-80/

MLA

"64/80 Simplified = 4/5." ILoveFractions.com, https://www.ilovefractions.com/tools/fraction-simplifier/64-80/. Accessed 2 September 2026.

Need to simplify a different fraction?

Use the main fraction simplifier for any numerator and denominator.

Open the Fraction Simplifier