LCD(5, 14) = 70
14
The least common denominator is 14. Whenever there are two values, and one is a multiple of the other, the multiple (larger number) is the LCD.
As 14 and 5 have no common factor other than 1, lcd of 14 and 5 is 14 × 5 = 70.
The LCD of 13, 14 and 15 is 2730 The LCD of 1/3, 1/4 and 1/5 is 60
14
LCD(21, 13, 14, 15) = 2730
49 x 2 = 98 14 x 7 = 98 98 is the LCD
LCD(6, 14) = 42
42
126
140