Simplest form answer

12/20 Simplified = 3/5

12/20 in simplest form is 3/5, found by dividing 12 and 20 by their greatest common factor, 4. As a decimal 3/5 is 0.6, and as a percent it is 60%.

Simplified

3/5

Decimal

0.6

Percent

60%

Step-by-step GCF reduction

1. Find the greatest common factor.

The GCF of 12 and 20 is 4.

2. Divide the numerator and denominator by the GCF.

12 ÷ 4 = 3

20 ÷ 4 = 5

3. Write the result.

12/20 simplified is 3/5.

Decimal and percentage equivalents

Decimal equivalent

3/5 = 0.6

Percentage equivalent

3/5 = 60%

Visual fraction bar

60%

The filled part represents 3/5 of one whole.

Cite this result

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

12/20 in simplest form is 3/5, found by dividing 12 and 20 by their greatest common factor, 4.
ILoveFractions, https://www.ilovefractions.com/tools/fraction-simplifier/12-20/, retrieved September 2, 2026

APA

ILoveFractions. (2026). 12/20 Simplified = 3/5. ILoveFractions.com. Retrieved September 2, 2026, from https://www.ilovefractions.com/tools/fraction-simplifier/12-20/

MLA

"12/20 Simplified = 3/5." ILoveFractions.com, https://www.ilovefractions.com/tools/fraction-simplifier/12-20/. Accessed 2 September 2026.

Need to simplify a different fraction?

Use the main fraction simplifier for any numerator and denominator.

Open the Fraction Simplifier