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Q: When you multilpy fractions do you need same denomator?
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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.


What is the meaning of addition and subtraction of similar fraction?

Similar fractions are fractions with the same denominator. In order to add or subtract fractions they need to be similar.


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.


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.


Why is it important to learn about equivalent fractions?

Answer: When adding or subtracting fractions with different denominators it is important to change the denominators into the lowest common denominator by using equivalent fractions. Answer: Equivalent fractions are used to: * Simplify fractions. It is sort of inelegant to write the final solution of a problem as 123/246, when you can just as well write it as 1/2. * Add fractions. If two fractions have different denominators, you need to convert them to equivalent fractions that have the same denominator. Only then can you add. * Subtract fractions (same as addition). * Compare fractions, to check which one is larger (same as addition).

Related questions

What do fractions need to have to compare them?

The same numerator or the same denominator.


How is adding like fractions and adding unlike fractions the same?

If the denominators are not the same, then you have to use equivalent fractions which do have a common denominator . To do this, you need to find the least common multiple (LCM) of the two denominators. To add fractions with unlike denominators, rename the fractions with a common denominator. Then add and simplify.


What are the fractions called that name the same amount on the same part of a whole are called?

idk you need to find it yourself * * * * * equivalent fractions.


What are compatible numbers for fractions?

I am not entirely sure what you mean, but if you need to add, subtract, or compare two fractions, they need to have the same denominator.


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.


Fractions Have The Same Denominators?

Not always but they need to have the same denominators when adding or subtracting them.


What is the meaning of addition and subtraction of similar fraction?

Similar fractions are fractions with the same denominator. In order to add or subtract fractions they need to be similar.


Are the steps for like and unlike denominators the same or different?

It depends what you are doing with the fractions. If you are multiplying or dividing fraction, the denominators do not need to be the same and the calculation can be carried out immediately. If you are adding or subtracting fractions, the denominators must be the same; if you have different denominators, the fractions must first be changed into equivalent fractions with the same denominator. When the denominators are the same (or have been made the same as equivalent fractions from being different) the calculation can be carried out.


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.


What are like and unlike fractions?

Like fractions are the fractions which have the same denominator and unlike fractions are the fractions which do not have the same denominator.


When you multiply a fractions with the same denominator will the denominator be the same?

exactly you got it you dont need help :)


Do bankers use fractions?

Yes, bankers use fractions because fractions are the same as percentage. and they need percentage for exact change and for knowing how much money is in the safe.