Question

How to find a LCM?
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Find the LCM of :
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(i)7and3
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Answer 1

Answer:

21

Step-by-step explanation:

To find the LCM, you have to see that is there any common multiple of the two numbers. If you find that common multiple, then you're good with that but if not then you have to multiply both the numbers in order to get the common multiple.

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Answer 2

Step-by-step explanation:

LCM:Lowest common multiple.

To find LCM

1.Write the factors of the give number.

eg.12=2×2×3 and 14=2×7

Then see the common number is both.

Write the common one only once that is the one two in both which is common should be written only once ,after that multiply it with rest.

2×2×3×7=84. is the LCM.

For 7 and 3

LCM=7×3=21.