The simplest form of 15/9 is 5/3.
Steps to simplifying fractions
- Find the GCD (or HCF) of numerator and denominator
GCD of 15 and 9 is 3 - Divide both the numerator and denominator by the GCD
15 ÷ 3/9 ÷ 3 - Reduced fraction: 5/3
Therefore, 15/9 simplified to lowest terms is 5/3.
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Equivalent fractions: 30/18 45/27 5/3 75/45 105/63
More fractions: 30/9 15/18 45/9 15/27 16/9 15/1014/9 15/8