Their product. If that's 1/6 and 1/5, the LCD is 30
The LCD of 13, 14 and 15 is 2730 The LCD of 1/3, 1/4 and 1/5 is 60
15
The LCD for 1/5 and 4/15 is 15.
15.
The LCD of x, 5, 7, 15 is 105x.
You need at least two fractions to find something in common.
195 If that's 1/3 and 1/5, the LCD is 15.
15
LCD(5, 15) = 15
15
The LCD of 4/5 and 1/3 is 15.