LCD Calculator

Your details

Enter a fraction (3/4), a whole number (5), or a mixed number (2 3/4).
Second fraction, integer, or mixed number.
Third value, leave blank to skip.
Fourth value, leave blank to skip.
Fifth value, leave blank to skip.
Sixth value, leave blank to skip.
Least Common Denominator
6

The smallest integer that is a multiple of every denominator.

LCM of Denominators6
Fractions Entered3
LCD6
Fractions3

The least common denominator is 6.

  • Equivalent fractions with the LCD: 3/6, 4/6, 5/6.
  • The denominators 2, 3, 6 were combined using their least common multiple.
  • The LCD (6) is smaller than the product of denominators (36) because some denominators share common factors.

Next stepNow that you have the LCD, multiply each fraction's numerator and denominator by the factor needed to reach the LCD, then add or subtract the numerators as needed.

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