If the HCF and LCM of two numbers are 13 and 1989 respectively and one of the number is 221, determine the other number.
Let Suppose we have two numbers a and b, then we have a rule i.e a×b=HCF(a,b)×LCM(a,b), which means that product of those two numbers is equal to the product of their LCM and HCF
Given : HCF=13andLCM=1989, a=221
so using the property, we have 221×b=13×1989
Hence the other number is 117
If HCF and LCM of two numbers are 0.5 and 2.5 respectively and one of the numbers is 2.0, what is the other number?