drscheme:language:simple-settings-fraction-style in DrScheme Tools Functions

• (drscheme:language:simple-settings-fraction-style simple-settings) -> (symbols 'mixed-fraction 'mixed-fraction-e 'repeating-decimal 'repeating-decimal-e)
     simple-settings : drscheme:language:simple-settings?

  Extracts the fraction-style setting from a simple-settings.