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Q: Do you need to change the denominator when multiplying fractions?
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Related questions

Do you need a common denominator multiplying fractions?

No.


Do you need a common denominator for dividing and multiplying fractions?

No you do not.


How do you multiply fractions with whole numbers?

Fractions are multiplied by multiplying numerator by numerator and denominator by denominator. The fractions may be simplified before multiplying. Whole numbers have the understood denominator of 1. Read this lesson on multiplying fractions if you need help on how to multiply fractions.you multiply the denomanators and the top number then multiply the whole #s then reduce your answer if you can. an example would be 3 8/9X6 8/9= 18 64/81 get it now?


How to change dissimilar fractions to similar fractions?

Note: numerator is the top part of the fraction, denominator is the bottom part. 1) Find a common denominator. It may be the least common denominator, but it need not be; just multiplying the denominators also gives you a common denominator, not necessarily the smallest one. 2) Convert each fraction so that it has this common denominator. This means multiplying numerator and denominator by the same number.


How do you find common denominators with dividing fractions?

When you're dividing fractions ... or multiplying thrm ... they don't need to have the same denominator.


Do you have to have a common denominator when your multiplying?

no u dnt need to have a common denominator.. Just multiply both the denominator and numerator of the fractions u are working on and u will arrive at the answers


Adding and subtracting unlike denominators?

Fractions can only be added or subtracted if the denominators are the same. If the denominators are different, then the fractions need to be made into equivalent fractions with the same denominator. The new denominator can be found simply by multiplying the denominators together, but this can lead to some large fractions with which to work. A better new denominator is the lowest common multiple of (all the) denominators. (Once the new denominator is found, the fractions' new numerators are found by multiplying their current numerator by the new denominator divided by their current denominator to make their equivalent fractions with the new denominator.) Once all the fractions are converted into equivalent fractions with the new denominator then the fractions can be added or subtracted, with the result being simplified (if possible).


Do you need a common denominator to divide fractions?

No. Dividing fractions is achieved by inverting the divisor and multiplying the resulting fractions. To multiply fractions the numerators are multiplied together to form the new numerator and the denominators are multiplied together to form the new denominator.


How do you get the common denominator for dividing fractions?

You don't need a common denominator to divide fractions.


Do you need a common denominator for all fractions before doing the order of operations?

You DO need a common denominator to add, subtract, or compare fractions. You DO NOT need a common denominator to multiply or divide fractions.


Do you need a common denominator for dividing fractions?

No only when adding or subtracting fractions a common denominator is needed


Why do you need a common denominator with fractions?

You can add or subtract fractions only if they are "like" fractions, that is, only if they have the same denominator - unless you know your fractions really well.


Do you need to have a reciprocal when multiplying fractions?

yes


When you are multiplying fractions do you need like denominators?

No.


Do you have to change the denominators when multiplying fractions?

No. To multiple fractions multiple the numerators together and multiply the denominators together and simplify (by dividing both numerator and denominator of the result by common factors until the only common factor is 1). The denominators only need to be the same when adding or subtracting fractions.


How do you divide fractions with common denominators?

you flip the last (second) fraction, and then you change the divide sign into a times sign. You can then times the fractions from there. You do not need the same denominator to times fractions.


Does division need a common denominator?

No, You only need a common denominator when adding or subtracting fractions.


What you need to add or subtract fractions?

You need a common denominator in order to add or subtract fractions.


Do you need a common denominator when multyplying fractions?

No.


Do you need a common denominator to multiply fractions?

No.


Why do fractions need to have a common denominator?

They need a common denominator when you add them. For example, if you want to add 1/2 and 1/3, you need to change the fractions to equivalents that share the same denominator, so you can combine them. 1/2 + 1/3 = 3/6 + 2/6 = 5/6


Do you need a common denominator when multiplying mixed numbers?

No.


How is subtracting fractions like adding fractions?

You need a common denominator for both.


Why do you need a common denominator?

Common Denominator means that the denominators in two (or more) fractions are common, or the same. The common denominator is important because before you can add or subtract fractions, the fractions need to have a common denominator.Sometimes fractions have different denominators, like 2/3 and 3/4. If you want to add or subtract them, they need to have the same denominator. In order to do that, you find a common denominator which is the same thing as a common multiple, only with denominators.


Do you need a common denominator when subtracting fractions?

yes you should use a common denominator when subtracting with fractions, it makes it much easier.