'string.IndexOf(char)' has a method overload that takes a 'StringComparison' parameter. Replace this call in 'CLDRPlurals.NumberHelpers.FractionalValue(double)' with a call to 'string.IndexOf(char, System.StringComparison)' for clarity of intent. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1307)

Do not declare visible instance fields (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1051)

Do not declare visible instance fields (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1051)

ReplacementMarkerResult should override the equality (==) and inequality (!=) operators (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1815)

ReplacementMarkerResult should override Equals (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1815)

Member 'OnConstruction' does not access instance data and can be marked as static (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1822)

Do not declare visible instance fields (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1051)

Do not declare visible instance fields (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1051)

ReplacementMarkerResult should override the equality (==) and inequality (!=) operators (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1815)