What is the denominator?
The denominator is the mathematical terminology used in the discussion of fractions. Fractions have three parts: numerator or top number, vinculum or line separating the numbers that means dividing and denominator or bottom number. The fraction actually suggests a division. The denominator is divided by the numerator. For example, in fraction 3/4, this can be read as 3 divided by 4, 0.75 or 75%.
We often consider a fraction part of the whole. The top number represents the number of parts, while the bottom is the actual amount. You could say that a fraction represents what is used from what can be used. When children learn fractions, they often learn it on the basis of cake slices. If there are 8 slices, the potential unit is 8 and it is a denominator. If 2 cuts are removed, there are now only 6/8 or six slices of possible eight slices. These are called wrong fractions. In fact, they are a whole number and something remains and can be converted to a mixed number.For example, 5/2 can be changed to 2 1/2. Sometimes it is easier to keep fractions in incorrect forms until all operations are completed.
When learning about fractions, children begin to learn in the third or fourth grade, is that there are many fractions that represent the same. Any fraction multiplied by the same number at the top and at the bottom will still work on the same decimal or percent. This information becomes useful when people have to add or subtract fractions that do not have the same denominator.
When the denominators are the same, only the highest numbers are added or subtracted. If different, other operations must be performed on fractions before adding or subtraction. This is called finding a common denominator.
In example 1/3 + 1/4, people must find a common denominator. They do this by looking at the denominator to see which numbers could be factors (enter). In thatAbout both 3 and 4 go and are factors 12. The operation is after each fraction convert to the twelfth. This would be done by multiplying 1/3 4/4 and multiplying 1/4 3/3, which would result in a new (but still the same) fractions of 4/12 + 3/12. Now it is possible to add fractions together (only the numerators!) And get the number 7/12.
Fraction operations can be more difficult and sometimes denominators can be written as decimal or fraction. These require a little more work. In a simple understanding of the term, however, it is very important that people realize one number that can never be a denominator. Zero can never be placed on the bottom of a fraction because in mathematical operations it cannot divide any number.