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title: 'Error 2: Wrong Number of Segments (Denominator)'

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# Error 2: Wrong Number of Segments (Denominator)

## Definition
When representing a fraction a/b on a number line, a wrong number of segments occurs if the interval from 0 to 1 (or any whole-number span) is divided into a number of equal subintervals that is not equal to b.

The total count of equal segments must match the denominator for the fraction to be correct.

## Example
If showing 3/4, but the segment from 0 to 1 is split into 3 or 5 equal parts instead of 4, we consider this error type to be the “wrong number of segments”, regardless of whether the parts are all equal in size.