how to find LCM of 8,15 and 21
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Answer:
840
Step-by-step explanation:
1. divide with the number that is divisible to it.if it is not keep the number same.
like,
15 and 21 divisible by 3 and 8 not
so 8 remains same and 15 and 21 becomes 5 and 7
2. we get 8,5 and 7 so it is divisible by the same number.
3. divide each number and lastly the remainder will be 1,1 and 1
4. find anything common if none then multiply and that will be the LCM
5.LCM=840.
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