Simplest form answer

9/15 Simplified = 3/5

9/15 in simplest form is 3/5, found by dividing 9 and 15 by their greatest common factor, 3. 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 9 and 15 is 3.

2. Divide the numerator and denominator by the GCF.

9 ÷ 3 = 3

15 ÷ 3 = 5

3. Write the result.

9/15 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

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9/15 in simplest form is 3/5, found by dividing 9 and 15 by their greatest common factor, 3.
ILoveFractions, https://www.ilovefractions.com/tools/fraction-simplifier/9-15/, retrieved September 2, 2026

APA

ILoveFractions. (2026). 9/15 Simplified = 3/5. ILoveFractions.com. Retrieved September 2, 2026, from https://www.ilovefractions.com/tools/fraction-simplifier/9-15/

MLA

"9/15 Simplified = 3/5." ILoveFractions.com, https://www.ilovefractions.com/tools/fraction-simplifier/9-15/. Accessed 2 September 2026.

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