[ '1/1', 1, '0/0', ], 'integer in vulgar fraction with ? placeholders' => [ '1/1', 1, '??/???', ], 'larger integer in vulgar fraction' => [ '12/1', 12, '?/?', ], 'negative integer in vulgar fraction' => [ '-3/1', -3, '?/?', ], 'zero in vulgar fraction' => [ '0/1', 0, '0/0', ], 'integer in vulgar fraction with fixed denominator' => [ '500/100', 5, '??/100', ], 'integer with 0 numerator placeholder' => [ '1 0/1', 1, '0 0/0', ], 'integer with 0 numerator placeholder and fixed denominator' => [ '5 0/4', 5, '0 0/4', ], 'integer with ? numerator placeholder' => [ '1', 1, '? ??/???', ], 'integer with # whole part and ? numerator placeholder' => [ '7', 7, '# ?/?', ], ];