how to find lcm of 21 and 84
Answers
Answered by
0
Answer:
by taking common multiple
and then finding the smallest same multiple
ans is 84
as
21 has 84 in its multiple
Answered by
1
Answer:
What is the LCM of 21 and 84?
Find the prime factorization of 21. 21 = 3 × 7.
Find the prime factorization of 84. 84 = 2 × 2 × 3 × 7.
Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM: LCM = 2 × 2 × 3 × 7.
LCM = 84.
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