Question

in word problems of LCM and HCF how will I find out if the solution is LCM or HCF

Answer 1

There is a formula between 2 numbers , their HCF and LCM.You may use that formula to find any 4 of the desired solutions.
The formulae are given below:
Let the 2 numbers be x and y , then:
$x*y=LCM * HCF$ of x and y.
⇒$x= \frac{LCM*HCF}{y}$
⇒$y= \frac{LCM*HCF}{x}$
⇒$LCM= \frac{x*y}{HCF}$
⇒$LCM= \frac{x*y}{HCF}$.
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