The LCM is: 189
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The LCM is 189.
The LCM (Least Common Multiply) of 21 and 27 is: 189 GCD: 3LCM: 189189
The Least Common Multiple (LCM) of 3, 9, and 27 is 27.
7/9 × 27 = (7×27)/9 = 189/9 = 21
1, 3, 7, 9, 21, 27, 63, 189.