Solutions
1. First, find the least common multiple for 6 and 14.
6, 12, 18, 24, 30, 36, 42, 48, …
14, 28, 42, 56, …
The least common multiple is 42.
Then find the least common multiple of 42 and 15.
15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, …
42, 84, 126, 168, 210
The least common multiple is 210.
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