pls do this answer fast I will mark you brainliest question b
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90
Step-by-step explanation:
- Write your numbers in the top row.
- Divide your numbers by prime numbers as long as at least one of your numbers is evenly divisible by a prime number.
- Bring down any numbers that are not evenly divisible by the prime number.
- When the last row of results is all 1's you are done.
- Find the product of the prime numbers in the first column to get the LCM.
- LCM = 2 x 3 x 3 x 5
- LCM = 90
- Therefore, LCM(15, 18, 45) = 90
Hope i helped. :)
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prime factorization of 18 = 2 × 3 × 3 prime factorization of 15 = 3 × 5 prime factorization of 45 = 5 × 3 × 3 LCM = 2 × 3 × 3 × 5 =90
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