Answer :

rational
Use the relation [tex]a~\times~b=\text{HCF}\times\text{LCM}[/tex].

[tex]54~\times~81~=~27\times\text{LCM}\implies\text{LCM}=\dfrac{54~\times~81}{27}~=~162[/tex]


given,

the two numbers are 54 and 81

hcf = 27

product of two numbers = hcf ×lcm

⇒ 54×81=27×lcm

lcm= (54×81)÷27

     = 162

therefore 162 is the lcm

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