Asked by Anonymous

GCF of 2 natural numbers is 3 and their LCM is 180 if one of the numbers is 45 then find second number
Answered by Reiny
Number property:
The product of the two numbers = (GCF)*(LCM)
So if the 2nd number is x
45x = 3(180)
x = 12

check: 12 and 45
12 = 2*2*3
45 = 3*3*5
So the LCF = 3
So the LCM = 2*2*3*3*5 = 180
Answered by Negash bekele etena
the should be .x=12, LCF=3
Answered by Bitania
Its nice but its nice if you show as other methods to answer the question and i think the answer is 36
Answered by Kumela
For any natural numbers A&B,
LCM(A,B)*GCF(A,B) is equal to the product of A&B,so 180*3/45 w/c becomes 540/45 equal to 12
Answered by Semay
Lcm( x,45)= a*45/Gcf( x,45) this become,180=45x/3 by cross multiply we get 540=45x then devide both side with 45 ,x=12








Answered by Yuusuf Ahmed Baamso
LCM(x,45)=180 and GCF(x,45)=3 then

Solution 45x=180
45x/45=180/45
X=4 then x*GCF
4*3=12
Answered by rex
12
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