weighing scales
In finding the LCM or HCF of two or more numbers
The HCF helps when reducing fractions. The LCM helps when adding or subtracting fractions.
LCM is used to find the lowest common denominator in fractions HCF is used to reduce fractions to their simplest terms
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?
Any job where you need to add or subtract fractions.
In finding the LCM or HCF of two or more numbers
The HCF helps when reducing fractions. The LCM helps when adding or subtracting fractions.
LCM is used to find the lowest common denominator in fractions HCF is used to reduce fractions to their simplest terms
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?
Use GCF instead of HCF. 6 and 30 would be those numbers...
2 and 20 have an HCF of 2 and an LCM of 20. You could also use 4 and 10.
Any job where you need to add or subtract fractions.
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.
When we simplify fractions.
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.