A common fraction is a type of fraction that is written in the form of a/b, where a and b are integers and b is not equal to zero. The two crossword solutions for the term COMMON FRACTION are EMS (3 letters) and TENTH (5 letters). EMS stands for 'Equal Multiples of a Single Unit' and is used to describe fractions that have the same denominator. TENTH is a fraction with a numerator of one and a denominator of ten.