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โˆ™ 2020-03-19 17:55:20
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Q: When multiplying fractions do you also multiply the denominator?
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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 make the denominator the same?

To make the denominator of two fractions the same, you multiply numerator and denominator of one fraction of the fractions by the same number. You may also have to multiply numerator of the other fraction by a different number.For example, to add 1/8 + 1/10, you have to convert to a common denominator; the lowest common denominator is 40, but any common denominator will work (for example, 80 which is simply the product of the two).To convert 1/8 to a fraction with a denominator of 40, multiply numerator and denominator by 5. To convert 1/10, multiply numerator and denominator by 4. The result is:5/40 + 4/40


When you multiply fractions by fractions what do you do to the numerators?

they are also multiplied. When multiplying fractions: (N1/D1) x (N2/D2). The new product is (N1 x N2) / (D1 x D2).


How is multiplying rational numbers like multiplying fractions and multiplying decimals?

Fractions and decimals are usually rational numbers. Besides, multiplying rational and irrational numbers is also similar.


Two fractions have a common denominator of 8 what could the fractions be?

Any fractions with a denominator of 8. Also, the denominator of one of the fractions might be any factor of 8.


How do you add fractions with different denominator?

Make them the same, for example, 2/4 + 1/5 = 10/20 + 4/20 = 14/20. Remember that whatever you multiply the bottom by you must also multiply the top by when changing fractions.


Why do you need the lowest common denominator for adding but not multiplying fractions?

This follows from the way in which addition and multiplication are defined. Addition requires like terms, multiplication does not. Incidentally, "like terms" are also required for adding algebraic terms but not for multiplying.


Can you call 2 equivalent fraction like fractions?

No. Like fractions have the same denominator.


How do you order fractions with unlike denominators?

You can convert them to equivalent fractions with like denominators, then simply compare the numerators.You might also convert each fraction to a decimal (divide the numerator by the denominator); then you can also compare them.


Why isn't a common denominator needed when multiplying or dividing fractions?

All you need to do to multiply two fractions is multiply the numerators, and multiply the denominators. First converting to a common denominator is possible, and it will indeed give you a correct answer, but it's an unnecessary complication. Not only must you find this common denominator, but it would also cost you additional work to simplify the result.


How do you put fractions in smallest to largest?

This is kind of difficult to explain in one post, but I'll give it a shot. Pretend you have a group of fractions: 1/4, 2/8, 1/2 To organize the fractions from smallest to greatest, you first have to make them all the same denominator. The denominator is the number at the bottom of a fraction. You can make all the fractions have the same denominator by multiplying the top, by the same amount you multiply the denominator (multiply the denominator into the smallest number that can be divided into every fraction's denominator) Like this. 1/4, 3/8, and 1/2.. The number that all the denominators can divide into is 8. So, to make the fractions have the denominator of 8, you have to multiply the denominator with a number that will make it 8. However, when you multiply the bottom, you must also do it to the top. It looks like this: 1x2/4x2, 3x1/8x1, 1x4/2x4 After you calculate that, it will look like this: 2/8, 3/8, 4/8. After they are all the same denominator, just order them from lowest to greatest by how big the top number is. That will look like: 2/8, 3/8, 4/8. This is because 2 is the smallest, then it's 3, then its 4. I hope that helped you understand. Another method (easier) Convert the fractions into decimals. You can use a calculator. This will allow you to sort them from smallest to largest just by comparing their decimal conversions or approximations.Example: 1/4 = .250, 3/8 = .375, 1/2 = .500. This lets you compare the fractions by comparing their relative amounts. Comparing fractions with different denominators is like comparing apples and grapes.


How do you add fractions with diffrent denominators?

To add fraction with different denominators, you want to move both fractions to a common denominator. You can do this by multiplying each fraction by the a fraction whose numerator and denominator is the same as the opposing fractions denominator. Example: 7 / 8 + 1 / 2 Multiply each fraction by the other fractions denominator over itself. This will work without changing the value because x / x = 1. (7 / 8 ) * ( 2 / 2 ) + ( 1 / 2 ) * ( 8 / 8) Simplify. 14 /16 + 8 / 16 Now just add the numerators together. 24 / 16 Simplify 3 / 2 or 1 1/2 You can also use any other numbers that will get your denominators to the same place. Remember, x / x = 1. And multiplying by 1 doesn't effect the value of the fraction.


How to compare fractions?

The usual method is to convert the fractions to equivalent fractions with a common denominator. Then you can simply compare the numerators. You can also convert each of the fractions to a decimal - this can easily be done with a calculator, simply divide the numerator by the denominator.


Do you have to have a common denominator when you are adding fractions?

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.


What is the Least Common Denominator of 1 fifth and 2 fifteenths?

the least common denominator would be 15. 1/5 would be 3/15 and 2/15 would stay the same..2/15. you take the denominator and multiply it by what to get 15........????........ answer: 3. so you also would multiply the numinator by 3 then take the second one. you multiply the denominator by 1 to get 15 so you do the same with thge numerator. the common denominator is 15 but to get them to fractions with the same denominators you would do that.


What is and commo denominator?

This is when two or more fractions have the same denominator (the number on the bottom). You can find a common denominator by trying different multiples of the fractions. I'm also aware that it's the name of a song by Justin Bieber on his new album! :D


What are numbers that can be written as fractions?

If the numerator and the denominator is an integer, then it is also called a "rational number".


What is A fraction where the numerator denominator or both are also fractions is called?

It is called a complex fraction.


What is the answer to this fraction 4over5 -7over10?

To solve a problem like this with fractions you first want to find a common denominator (bottom number). Your lowest common denominator would be 10. Since 7/10 already has a denominator of 10, you only need to convert 4/5. to get 10 as the denominator we multiply the current denominator by 2 but to keep the fraction even you must also multiply the top by 2, which will result in 8. then solve 8/10 - 7/10 = 1/10


What is double one third?

When adding fractions, the denominator must be the same so that you can add the numerators: 1/3 + 1/3 = 2/3. This can also be written as a multiplication problem: 2/1 (which is the same thing as saying 2) x 1/3 =2/3. In the case of multiplying fractions you would multiply the numerators and the denominators so 2x1 and 3x1.


Ordering Rational Number?

Rational numbers are (basically) fractions. You can compare any two fractions by converting them to fractions with a common denominator, and then comparing their numerators.You can also convert them to their decimal equivalent (just divide numerator by denominator); that also makes them fairly easy to compare.


What is 1056 as a fraction?

1056 is an integer and not a fraction. However, it can be expressed in rational form as 1056/1. You can also calculate equivalent rational fractions if you multiply both, its numerator and denominator, by any non-zero integer.


When you are multiplying exponents do you only add the exponents or do you also multiply the bases?

Add the exponents


How can you add similar and dissimilar fractions?

Adding similar fractions is easy, but adding dissimilar ones requires an additional step. Before you begin, you must know a few important key terms. First, the number on the top of a fraction is called the numerator, while the number on the bottom of a fraction is called the denominator. Similar fractions have the same denominator, also called a common denominator. To add dissimilar fractions (fractions with different denominators), you must first convert the fractions so that the denominators are the same.


How to do two step equations fractions?

I am not sure what you mean with "two step"; also, the details depend on solving equations depend on the specific equation. However, one thing you can often do to simplify equations with fractions is multiply left and right by the common denominator of all fractions - that way, you get rid of the fractions. Here is an example: (1/2)x + 3 = (2/3)x + 5 If you multiply both sides by 6, you'll get rid of the fractions (only whole numbers remain); this makes the equation easier to solve: 3x + 18 = 4x + 30