It is the lowest common multiple of the different denominators.
You don't. You use the GCF to reduce the answer once the addition or subtraction is complete.
Least common denominator. Used in fractions. For example : 1/2 and 3/4 The fraction that has the lowest denominator, while still having an equivalent fraction is the LCD. In this case it would be 2/4 and 3/4. Because 1/2 = 2/4, and the lowest common denominator between the two fractions is 4. Hope this helps ! :D
That's the least common denominator or LCD.
The least common denominator.
There is no greatest common denominator, for whatever figure someone comes up with for the greatest common denominator, I can always add the lowest common denominator of 66 and 93 (which is 2046) and get an even higher common denominator.
Addition or subtraction of fractions require "like" fractions: that is, fractions with the same denominator.
addition and subtraction, you dummy
No. Common denominators are needed for addition and subtraction, not multiplication or division.
What is the least common denominator for 7/8 + 3/4
Because addition and subtraction are defined in terms of like terms.
Addition and subtraction are the only fraction operations that need a common denominator. Multiplication, division, and exponents do not need a common denominator. In fact, it is best to use reduced fractions otherwise it gets very messy.
Yes because they must all have the same denominator and this is found by working out their lowest common denominator.
The answer to an addition, subtraction, multiplication, or division of fractions should always be expressed in its simplest form. This means that the numerator and denominator should be reduced to their lowest terms, ensuring that there are no common factors other than 1. Additionally, when adding or subtracting fractions, a common denominator must be found first.
Having a common denominator makes it easier to add or subtract fractions. You can also convert fractions to decimals and then do the addition or subtraction but that is really the same thing as having a common denominator of 10. 100. 1000. etc. Without a common denominator, you would have to mentally make adjustments for the values of fractions. Of course, that is really establishing a common denominator in your head.
It is usually called the least common multiple. But it can also be called the least/lowest common denominator when it is used for addition or subtraction of rational fractions.
If you apply it to the denominators, you could call it the least common denominator.
You don't. You use the GCF to reduce the answer once the addition or subtraction is complete.