84
84
13/13 + 12/14 = 13/7 or 16/7
LCD(21, 13, 14, 15) = 2730
The LCD of 13, 14 and 15 is 2730 The LCD of 1/3, 1/4 and 1/5 is 60
LCM of 14 12 28 is 84
its 6/13
The LCD of 1/4 and 1/6 is 12
You need at least two fractions to find an LCD.
LCD(12, 14, 16) = 336.
126
30
13 and 12/8 = 14 and 1/2