54
lcd for 33,27 and 9 is 297
the LCD of 2, 9 and 5 = 90
LCD(7, 9, 2) = 126.
LCD(2, 9, 11) = 198.
LCD(4, 2, 9) = 36
You need at least two fractions to find a common denominator.
LCD(9, 3y) = 9y
LCD(6, 27) = 54
The multiples of 2 are 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22…The multiples of 9 are 9, 18, 27, 36, 45…The LCD of 2 and 9 is 18.
18
it is 1
If that's 9/10 and 2/3, the LCD is 30.