Somone put 30, but seven doesnt go into it
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The least common denominator of three fourths and five sixths is twelve.
The LCD of 3/4 and 7/9 is 36.
Answer: 30 If those numbers are denominators, the least common denominator is the least common multiple of the three. In this case, 30 is the LCM of 6, 10 and 15, so 30 is the least common denominator.
12
36