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How can knowing the GCF and LCM help you when you add subtract and multiply fraction?
Wiki User
∙ 8y ago
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.
Wiki User
∙ 8y ago
Anonymous
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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.
What is .787 as a fraction?
0.787 as a fraction is 787/1000
Why should you find a LCM?
Finding an LCM will help when you want to add and subtract fractions.
0.016 as a fraction in simplest form?
.016 in fraction form is 2/125! Hope I could help!
What is 0.238095238 as a fraction?
plz help me w/ this question
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.
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.
How can using the GCF and LMC help you you add subtract and multiply fractions?
In order to add or subtract fractions, the denominator (bottom number) has to be the same. In order to make it the same, you find the LCM and multiply the fraction by whatever is necessary to make the denominator the LCM. FOR EXAMPLE: 1/3 + 2/5 The LCM of 3 and 5 is 15. To make the 3 in 1/3 15, you multiply the whole fraction by 5 over 5 (it simplifies to 1 so you aren't really changing the fraction by multiplying it by 1). 1/3 * 5/5 is 5/15 You multiply 2/5 times 3 over 3 using the same principle 2/5 * 3/3 is 6/15 NOW you can add 5/15 and 6/15 to get 11/15.
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.
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 abacus help people?
The abbucus helps people who can't use modern technology to count (add, subtract, multiply and divide).
How does math help being an accountant?
it helps because you add subtract multiply divide and other mathematical operationsyou SOLVE so you can get the answers
What is P.E.M.D.A.S in math?
It is just a little nice reminder of the trick that will help you remember steps. it stands for Parenthesis, exponents, multiply, divide, add, subtract!
x2+x-6 over x2-x-2 (fraction) multiply by x2+11x+24 over x2-x-2 (fraction) divide by x+3 over x2+3x+2.multiply and divide as indicated. please help?
5
how do you add, subtract,and evaluate integers?
i need help finding the answer ummm can some one help me like how to do 3(y+6)=30 multiply it out... 3y + 18 = 30 3y = 12 y = 4
How can you use equivalent fractions to help you add and subtract fractions with unlike denominators?
Change each fraction to an equivalent fraction with the same denominator. 3/8+5/12= 9/24+10/24=19/24
What is an equation you can get 24 with by using the number 6 4 and 3 no exponents may be used you may only add subtract multiply or divide please help?
Quadratic equation
