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Find Common Denominators and Least Common Denominator
Worksheet
Grade Level
Grade 5
5.51 Find Common Denominators and Least Common Denominator
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For 11/20 and 3/12, which statement about the least common denominator is correct?
A
The LCD is 40 because both denominators are less than 40
B
The LCD is 60 because 60 is the least common multiple of 20 and 12
C
The LCD is 80 because 20 times 4 is 80
D
The LCD is 120 because 60 is only a common denominator
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