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Q: What is the practical use of HCF and LCM?

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The HCF helps when reducing fractions. The LCM helps when adding or subtracting fractions.

LCM is 20 and the hcf is 10

ghadon

HCF = 3... LCM = 18 !

HCF is 48 and LCM is 576

hcf = 42, lcm = 84.

The HCF = 20 The LCM = 600

HCF is 60 and the LCM is 360

The HCF is: 2The LCM is: 2,520

The LCM is: 900The HCF is: 10

hcf is 1 and LCM is 35

They are: LCM = 120 and hcf = 8

weighing scales

hcf: 1 lcm: 112,038

The HCF is always a factor of the LCM of two numbers. The HCF is a factor of both the numbers which are factors of their LCM. Thus the HCF is also a factor of the LCM of the two numbers.

No. The LCM MUST be a multiple of the HCF.

Most times the question will specify "find the HCF" or "find the LCM." If you're trying to find common denominators, that's an LCM problem. If you're trying to reduce fractions, that's an HCF problem.

LCM = product/HCF so product = LCM/HCF in this case 380/16 which is 23.75, so the answer to your question is no.

LCM is used to find the lowest common denominator in fractions HCF is used to reduce fractions to their simplest terms

5 and 10 lcm- 10 and hcf= 5

HCF - Highest Common Factor. LCM - Lowest Common Multiple.

The LCM is: 126

HCF = 5LCM = 440

LCM = Product/HCF = 384

124