375To find the Least Common Denominator (LCD) of 15 and 125 you could make a list of their multiples until you find a number common to both lists:15: 15, 30, 45, 60, 75, 90, 105, 120, 135, ....125: 125, 250, ...This method can sometimes be tedious. A more 'scientific method is to find the prime factorization of each number|15 = 3x5125 = 5x25 = 5x5x5The LCD has to have enough factors in it to make each of the numbers. There has to be 1 three and 3 fives.LCD = 3x5x5x5 = 3x125 = 375.
125
30250
375
28250
LCD(9, 15) = 45
LCD(15, 26) = 390
There is none because the Least Common Denominator (or LCD) is the Least Common Multiple (LCM) of the denominators of a pair of fractions.
LCD(15, 7, 8) = 840.
15
LCD refers to integers. The LCD of 15 and 23 is 345
The LCD of x, 5, 7, 15 is 105x.