Any job where you need to add or subtract fractions.
The HCF helps when reducing fractions. The LCM helps when adding or subtracting fractions.
weighing scales
LCM is used to find the lowest common denominator in fractions HCF is used to reduce fractions to their simplest terms
In finding the LCM or HCF of two or more numbers
For adding and subtracting fractions with different denominators and reducing them to their lowest terms.
The HCF helps when reducing fractions. The LCM helps when adding or subtracting fractions.
Use GCF instead of HCF. 6 and 30 would be those numbers...
weighing scales
LCM is used to find the lowest common denominator in fractions HCF is used to reduce fractions to their simplest terms
2 and 20 have an HCF of 2 and an LCM of 20. You could also use 4 and 10.
If you are a teacher who works with 27 pupils and 18 pupils and
Chefs, carpenters, anyone who has to add, subtract or simplify fractions.
In finding the LCM or HCF of two or more numbers
For adding and subtracting fractions with different denominators and reducing them to their lowest terms.
In order to find the other number, we can use the relationship between the HCF and LCM. By multiplying the HCF and LCM together and dividing by one of the numbers, we can find the other number. So, (11 * 7700) / 275 = 308. Therefore, the other number is 308.
You use the LCM when you want to add or subtract fraction and then you can use the HCF to simplify the result. You may want to do this when budgeting: for example one quarter of your pay goes on rent, two fifths goes on food and drink, and so on. So how much of your pay is available for discretionary spending?
Steps to find out LCM of two numbers(a & b):1- Find HCF of a & b.2- Multiply a and b.3- Divide the result of step 2 by HCF. The result is LCM.1- In order to find out HCF of 540 and 315 we shall use the method of prime factorization.Prime factorization of 540 = 2x2x3x3x3x5Prime factorization of 315 = 3x3x5x7HCF(540, 315) = 3x3x5 = 45.2- Product of 540 and 315.540 x 315 = 170100.3- LCM(540, 315) = 170100/45 = 3780.