Ordinarily, one finds the least common denominator (LCD) of a set of common fractions in order to add or subtract the set of fractions. The LCD is the least common multiple (LCM) of the denominators of the set of fractions. Without knowing whatis to be multiplied by the LCD, and why, this question is ambiguous.
When reducing fractions to their lowest terms or finding the LCD of fractions
(1) find the LCD. (2) find the factor that each original denominator needs to be multiplied by to get the LCD. (3) multiply both the numerator and the denominator by that factor.
2/3 and 5/9The LCD is 9.
The LCD for these two fractions is 6.
When multiplying fractions, it is not necessary to find the LCD first.
Ordinarily, one finds the least common denominator (LCD) of a set of common fractions in order to add or subtract the set of fractions. The LCD is the least common multiple (LCM) of the denominators of the set of fractions. Without knowing whatis to be multiplied by the LCD, and why, this question is ambiguous.
The LCD for fractions is the LCM (least common multiple) of all of the denominators.
When reducing fractions to their lowest terms or finding the LCD of fractions
The LCD of two fractions is the same as the LCM of their denominators.
LCD
Once you find the LCD, convert the fractions to their equivalents and then you can add and/or subtract them correctly.
The LCD, or Lowest Common Denominator, is the smallest multiple of each of the denominators of a set of fractions. So, assuming that 2, 4 and 5 are denominators of fractions (1/2, 1/4 and 1/5, for example), the LCD would be 20, because 20 is the lowest number that 2, 4 and 5 multiply into. So, your new fractions would be 10/20, 5/20 and 4/20. The purpose of finding the LCD is to allow for multiplying fractions together, or simply comparing them easily.
how do u exspress fractions how do u exspress fractions
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You need at least two fractions to find an LCD.