The LCD of 7/8 and 1/3 is 24.
The LCD of 1/3 and 1/9 is 9.
24 1/3 = 8/24 5/8 = 15/24
6
12
12
60
15
21
24
15
12
12, i think
Pick two of the fractions and find the Least Common Multiple of those two denominators. Then take that number, and find the Least Common Multiple between that and the third denominator. This number will be the Least Common Denominator between the three fractions.If you don't care to find the Least common denominator, then just take the three denominators, and multiply them together.
The LCD of 3/16 and 1/3 is 48.
The LCD of 7/8 and 1/3 is 24.
The LCD of 1/3 and 1/9 is 9.