Answer :

107/12 can be simplified when put into a mixed number.
107 ÷ 12 = 8 with a remainder of 11
This means that the mixed number would be
8 11/12

Fraction: 107 / 12 = 107 / (22 * 3) is already reduced (simplified) to lowest terms, numerator and denominator are coprime numbers.
Improper fraction, rewritten: 
107 : 12 = 8 and remainder = 11 => 
107 / 12 = (8 * 12 + 11) / 12 = 8 + 11 / 12 = 8 11/12 ~ mixed fraction