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Question

Calculate LCM of 23,512,1027 and 421 using long division method.

A
53
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B
103
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C
203
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D
403
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Solution

The correct option is C 203
We have to find the LCM of 23,512,1027,421 by long division method.
We know that LCM of fractions=LCM of numeratorHCF of denominator
Now let us find the LCM of numerator: 2,5,10,4

Thus the LCM of numerator is 2×2×5=20
Now let us find the HCF of denominator: 3,12,27,21

Thus the HCF of denominator is 3.
Hence, LCM of fractions=LCM of numeratorHCF of denominator=203

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