The ratio of two numbers is 5 : 6 and their HCF is 7. Find their LCM.
Given:
The ratio of two numbers = 5 : 6
HCF of the two numbers = 7
Formula Used:
If numbers are a and b, then
HCF × LCM = a × b
Solution:
Let the two numbers be 5x and 6x
Since their HCF is 7,
x = 7
So, the numbers are:
Now,
LCM = = 210
Alternate Solution(Exam-Hall trick):
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