Question

HCF and LCM between 18,24 and 30

Answer 1

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Answer 2

Answer:

I do in short method

The LCM Of 18,24 and 30 is 360

Yo do this like

2 18,24,30

2 9, 12, 15

2 9, 6 ,15

3 9, 3, 15

3 3, 1, 5

5 1, 1, 5

1, 1, 1

LCM of 18,24 and 30= 2 x 2 x 2 x 3 x 3 x 5 = 360

The HCF of 18,24 and 30 is 6

2 18,24,30

2 9,12,15

2 9, 6, 15

3 9, 3, 15

3 3, 1, 15

5 1, 1, 5

1, 1, 1

So, there is a pair of 2 and 3

=2 x 3

= 6

Here,the HCF is 6

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