Question

find the LCM and HCF of the following pairs and numbers

a) 12 and 24
b) 24 and 36
c) 45 and 30
d) 13 and 19​

Answer 1

Answer:

1.) LCM- 24, HCF- 12

2.) LCM- 72, HCF- 12

3.) LCM- 90, HCF- 15

4.) LCM- 247, HCF- 1

Step-by-step explanation:

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Answer 2

Answer:

A ) LCM: 24, HCF: 12  .  B ) LCM: 72, HCF: 12  . C ) LCM: 90, HCF: 15  .

D ) LCM: 247, HCF: 1.

Step-by-step explanation:

A ) 12: 2 x 2 x 3

   24: 2 x 2 x 2 x 3

B ) 24: 2 x 2 x 2 x 3

    36: 2 x 2 x 3 x 3

C ) 45: 5 x 3 x 3

    30: 2 x 3 x 5

D ) 13: 13

    19: 19

( Nothing is common in D so the HCF of D will be 1. )

I have also given step by step explanation so pls give me brainliest