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No, you don't.

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Q: When multiplying a fraction by a whole number do you multiply the denominator?
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Related questions

How do you find an equivalent fraction by multiplying?

Multiply the numerator and the denominator by the same number.


How do you change a mixed fraction into an improper fraction?

Multiply the denominator by the whole number, then add the numerator by the answer you got from multiplying. Last, you slide the denominator over.


How do you get a fraction from a mixed number?

You multiply the denominator by the whole number, then you add what you got from multiplying the denominator by the whole number by the numerator! An example:13/4 would equal 7/4 as a improper fraction!


What happens when you multiply both the numerator and the denominator of a fraction by 9?

Nothing, there is no change, since you are multiplying by 9/9 = 1.


What type of fraction do you get by multiplying the numerator and denominator by the same number?

You will get an equivalent fraction if you multiply both by a non-zero number. Otherwise you will be trying to execute an illegal operation.


Why Can you multiply the numerator and denominator of a fraction by the same number to write an equivalent fraction?

Because a fraction is represented by the ratio of the two numbers and multiplying both by the same number does not change their ratio.


What is a general rule for multiplying fractions and whole numbers?

A general rule for multiplying fractions: You shall not multiply the denominator by the whole number,only the numerator.Another rule is you shall make the whole number as a fraction by putting the whole number as the numerator and 1 as the denominator before multiplying it.


How do you multiply a whole number by an improper fraction?

The same way as multiplying a whole number by an ordinary fraction: Multiply the numerator (top number) by the whole number and put it over the original denominator (bottom number). This can then be simplified by dividing the numerator and denominator by their highest common factor; or it can be converted into a decimal (which could be a whole number) by dividing the numerator by the denominator.


Why do you have to multiply or divide both the numerator and the denominator of a fraction to find an equivalent fraction?

It is the basic law of algebra. When you multiply or divide both by the same number you do not change the value, as it is the same as multiplying or dividing by 1.


Why do you have to multiply or divide both numerator and denominator of a fraction to find an equivalent fraction?

if you multiply a number by a certain factor and then divide it by the same factor you do not change anything. It is like multiplying by 1. If you multiply only the numerator you have changed the answer and it is not equivalent.


How do you multiply a mixed fraction by a whole number?

You would turn the mixed number into a fraction by multiplying the whole number(the one in the mixed fraction) by the denominator and then you add the numerator to the product. You would then put that number you get and out it over the denominator. For the other whole number, you would put it over one and multiply the two fractions!


How can you write a whole number as a fraction?

Write it with a denominator of 1. Or, after doing that, find an equivalent fraction by multiplying both numerator and denominator by any whole number. For example, 6 = 6/1. If you choose to multiply both by 7 you get 42/7.