Here we will show you how to convert the ratio 15:3 to a fraction. In other words, we will convert the ratio of 15:3 to a fraction with a numerator and and denominator.
A ratio of 15:3 means that there are 15 of something and 3 of something else with a total of 18.
To convert a ratio such as 15:3 to a fraction, you make the left side of the colon the numerator and the total the denominator:
15:3 → 15/18
Since there are 3 of something else, you can also make another fraction where the right side of the colon is the numerator and once again the total is the denominator:
15:3 → 3/18
Ratio to Fraction Converter
Use this tool to convert another ratio to a fraction.
15:4 as a fraction
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