Question

the HCF of 45 and 105 is 15. Find the LCM.​

Answer 1

Answer:

Step-by-step explanation:

We know,

HCF of 2 numbers  LCM of same 2 numbers = product of the two numbers.

Given that the 2 numbers are 45 and 105.

HCF of the 2 numbers = 15.

Hence, according to the formula  

HCF of 2 numbers  LCM of same 2 numbers = product of the two numbers.

15 x LCM of the numbers = 45 and 105

LCM of the numbers =  = 315  

Therefore, LCM of the numbers = 315

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Answer 2

Step-by-step explanation:

$LCM \: \times HCF \: = a \times b$

LCM=a(b)/hcf

=45(105)/15=3(105)=315.