Find the 2 natural number in ratio 5:7 such that their lcm is 210
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Let the numbers be 5a and 7a
HCF = a
LCM = 210
We know that,
Product of numbers = LCM ×HCF
=> 5a × 7a = 210 × a
=> 35a = 210
=> a = 6
First number = 30
Second number = 42
HCF = a
LCM = 210
We know that,
Product of numbers = LCM ×HCF
=> 5a × 7a = 210 × a
=> 35a = 210
=> a = 6
First number = 30
Second number = 42
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