78
The LCD of 6 is 1
LCD(13, 16) = 208
LCD(7,9,13) = 7*9*13 which is 819
If 13 and 518 are both denominators, the LCD is 6734 If that's 1/3 and 5/18, the LCD is 18 and you can change 1/3 to 6/18
LCD(6, 8) = 24
LCD(6, 27) = 54
the LCD is 6
lcd(9, 6) = 18.
LCD(20, 6) = 60
The LCD of 13, 14 and 15 is 2730 The LCD of 1/3, 1/4 and 1/5 is 60
LCD(21, 13, 14, 15) = 2730
LCD of 8,7,8