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The least common factor of any set of numbers is 1, so that doesn't help at all. Finding the GCF of the numerator and denominator and dividing them by it will help to simplify a fraction. Finding the least common multiple of the denominators (called the least common denominator) will help when you add and subtract fractions. None of those are needed to multiply fractions.

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Q: How can knowing the greatest common factor and lowest common factor help when you add subtract and multiply fractions?
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How can knowing the gcf and lcm help you add subtract and multiply fractions?

Knowing the LCM of the denominators will help you to find a least common denominator of unlike fractions, which will allow you to add and subtract them successfully. Knowing the GCF and LCM will not help you in multiplying them, but knowing the GCF of the numerator and denominator of a fraction will help you reduce it if necessary.


How can knowing the GCF and LCM help you when you add subtract and multiply fractions?

Knowing the LCM will help when adding or subtracting unlike fractions. By finding the LCM of the denominators, (called the lowest common denominator) you can convert unlike to like fractions and proceed with the adding or subtracting. Knowing the GCF helps reduce a fraction. By finding the GCF of the numerator and the denominator and dividing both of them by it, you can reduce a fraction to its lowest terms (simplest form). If the GCF is 1, the fraction is in its simplest form. You can successfully multiply fractions without knowing the GCF or LCM.


How can knowing the greatest common factor and least common multiple help you when you add subtract and multiply fractions?

Knowing the least common multiple of the denominators will help you find a common denominator when adding and subtracting unlike fractions. Knowing the greatest common factor of the numerator and the denominator will help you reduce the fraction if possible.


How can knowing the LCM help you add subtract and multiply fractions?

When adding and subtracting unlike fractions, it is necessary to find the LCM of the denominators, called the least common denominator. Once you have found the LCD, you can convert the fractions to equivalent fractions with a common denominator and proceed with the adding and/or subtracting. Finding an LCM will have no effect on multiplying fractions.


How can knowing the GCF and LCM help you when you add subtract and multiply fraction?

Knowing the LCM of the denominators of unlike fractions will help you find the least common denominator, a necessary step in adding and subtracting them. Knowing the GCF of a numerator and denominator will tell you if the fraction can be reduced.


What does knowing how to subtract fractions have to do with daily life?

Well after you finish your education there are some jobs you would like to get which would require maths skills^^


Why is greatest common factor in math helpful?

Finding the GCF helps to reduce fractions to their simplest form. Knowing the GCF can help to find the LCM, which assists in adding and subtracting fractions.


Definition of Multiplying by the least common denominator?

Ordinarily, one finds the least common denominator (LCD) of a set of common fractions in order to add or subtract the set of fractions. The LCD is the least common multiple (LCM) of the denominators of the set of fractions. Without knowing whatis to be multiplied by the LCD, and why, this question is ambiguous.


What good is math?

It will help you in life a ton! knowing how to add,multiply,subtract,and a lot of other math stuff will help you get good grads, get a good job, and help you know if your getting ripped off at a yard sale.


Do bankers use fractions?

Yes, bankers use fractions because fractions are the same as percentage. and they need percentage for exact change and for knowing how much money is in the safe.


Why do you use LCD to solve the addition and subtraction fractions?

Because you can't add or subtract fractions unless they have the same denominator, so when you run up against two fractions with different denominators, you have to find a single denominator that works for both of them. There are an infinite number of common denominators that you could use, but the easiest one to handle without making mistakes is going to be the smallest one, so it's worth knowing how to find it.


Why it is GCF very important?

When reducing fractions to their lowest terms knowing their gcf is useful


How does knowing factors help you simplify fractions?

Knowing factors will help you find a GCF. To simplify a fraction, divide the numerator and the denominator by their GCF.


What are the guns listed from greatest to least?

Impossible to answer without knowing what you mean by "greatest" and "least".


How do you find how many electrons an atom has?

Knowing which element it is and its formal charge, subtract the charge from its atomic number.


When you subtract a positive integer from a positive integer do you get a positive integer?

Not necessarily, for example: If you subtract 3 from 4, then you get +1. But if you subtract 4 from 3, you get -1. The answer will always be an integer, but you cannot make a general statement about the sign, without knowing more information.


What is the greatest tragedy in life?

the greatest tragedy in life...in philosophy is not death but, to live without knowing the purpose....


Bill Gates greatest accomplishment?

knowing brendan buckley


How do you subtract fractions with different denominators and then put in simplest form?

You need to find a common denominator for the two fractions, then you can subtract them. Most will find the lowest common denominator (LCD) which is the same as the lowest common multiple of the two denominators, but any common denominator will work. You can get a common denominator, by multiplying the two numbers together, for example, but it might not be the lowest.Here's an example: 1/2 - 1/6 --> a common denominator is 2 x 6 = 12, but knowing how to find the lowest common denominator, you find LCD = 6.Either one will work though. Take 12: we need to convert each fraction to an equivalent fraction that has 12 in the denominator. So for 1/2, we need to multiply 2 by a number to get 12 [12/2 = 6], so we multiply top and bottom by 6, and get 6/12.For 1/6, multiply 6 by 2 is 12, and the top: 1 times 2 = 2 --> 2/12.Now we have 6/12 - 2/12. The denominators are the same, so subtract the numerators: 6 - 2 = 4, so we have 4/12.Now simplify: Factor out and see what common factors between 4 and 12 can be canceled. So 12 = 3 x 4, and we have (1 x 4) / (3 x 4) = 1/3, so 1/2 - 1/6 = 1/3.


Give another example about proper fractions?

The phrasing of the question implies that you already have one or more examples of proper fractions. But we have no way of knowing what they are. So we cannot tell whether what we say in the answer is another example or one that you already have.


How do you determine the number of neutrons of an atom when knowing the mass number and the atomic number of that atom?

Subtract the atomic number from the mass number.


What is the conents listed from least to greatest?

We won't be able to answer that without knowing the conents.


How do you find inside diameter of pipe knowing the wall thickness and outside diameter of pipe?

take the outside diameter and subtract the thickness twice.


How does knowing the gcf of a number help us with fractions?

If you divide the numerator and the denominator of a large fraction by their GCF, the result will be the fraction in its simplest form.


Why do use factoring in math?

Knowing the highest common factors of numbers helps to reduce fractions to their lowest terms Factoring helps to find the lowest common multiple of numbers which is useful when adding or subtracting fractions with different denominators.