Question

what is the ratio of lcm and hcf of 5,15 and 20​

Answer 1

Answer:

LCM (5, 15, 20) = 2∣

5,15,20

2∣

5,15,10

3∣

5,15,5

5∣

5,5,5

∣1,1,1

LCM = 2×2×3×5=60

5=1×5

15=3×5

20=2×2×5

So, HCF (5, 15, 20)=5

HCF

LCM

=

5

60

=12

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