Common Numerator
Common Numerator . Both the fractions have different numerators. The lcm of 2 and 1 is 2. Common Denominator Math ShowMe from www.showme.com How to remember numerator and denominator? If the numerator is equal to 0, then the entire fraction becomes zero irrespective of the denominator’s value. Where 3 is the numerator of the fractions 3/8 and 3/4.