Least Common Denominator (LCD)

  • The smallest value that is a multiple of the different denominators is called the least common denominator or LCD
  • Example: 12 is the the LCD of \frac { 1 }{ 4 } and  \frac { 2 }{ 3 }
  • Application: adding and subtracting fractions
Least Common Denominator (Wikipedia)
This article is about mathematics. For computers, see Lowest common denominator (computers).

In mathematics, the lowest common denominator or least common denominator (abbreviated LCD) is the lowest common multiple of the denominators of a set of fractions. It simplifies adding, subtracting, and comparing fractions.

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