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Two friends are splitting the cost of a Pizza. One of them says that she is giving 1/3 of her half to someone else. If the pizza is cut into sixths, that's easy to do.

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Q: Use a pizza as an example for explaining how and why you must first get a common denominator?
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How do you change the dissimilar fraction to similar?

First you find a common denominator, then you convert both fractions to the common denominator. For the common denominator, find a number that is divisible by both denominators. Just multiplying both will work, but this is not always the most efficient method, since this may cause you more work later, to simplify the result. Once you decide on a common denominator, in both fractions multiply the numerator and the denominator by the same number. Example: 1/3 + 1/4 Common denominator is 12 Multiply the first fraction by 4/4, and the second by 3/3, to obtain: 4/12 + 3/12


How do you change a fraction so they have the same denominator?

First, find a common denominator for the two (or more) fractions. Then, for each fraction, multiply numerator and denominator by the same number (different numbers for different fractions, though), to convert to the common denominator.


How are equivalent fractions used when subtracting unlike fractions?

First you find a common multiple of the denominators. The least common denominator is handy but not essential. This number will be the denominator of the answer - before simplification.For both fractions find an equivalent fraction whose denominator is this common denominator.Carry out the subtraction on the new numerators to give the numerator of the answer.Simplify the result for the final, simplified answer.First you find a common multiple of the denominators. The least common denominator is handy but not essential. This number will be the denominator of the answer - before simplification.For both fractions find an equivalent fraction whose denominator is this common denominator.Carry out the subtraction on the new numerators to give the numerator of the answer.Simplify the result for the final, simplified answer.First you find a common multiple of the denominators. The least common denominator is handy but not essential. This number will be the denominator of the answer - before simplification.For both fractions find an equivalent fraction whose denominator is this common denominator.Carry out the subtraction on the new numerators to give the numerator of the answer.Simplify the result for the final, simplified answer.First you find a common multiple of the denominators. The least common denominator is handy but not essential. This number will be the denominator of the answer - before simplification.For both fractions find an equivalent fraction whose denominator is this common denominator.Carry out the subtraction on the new numerators to give the numerator of the answer.Simplify the result for the final, simplified answer.


Why does the fraction that results from adding or subtracting fractions with unlike denominators have a different denominator?

When you add fractions that have unlike denominators, the first step is to convert them so they are expressed as fractions using the least common denominator. The result is that the answer will have a different denominator, or it may use one of the original two denominators.For example if you are adding 1/10 and 3/5, the least common denominator is 10, the problem is rewritten as 1/10 + 6/10 = 7/10But if you are adding 1/5 and 1/6, the least common denominator is 30 and the problem is rewritten as 6/30 + 5/30 = 11/30


How do you compare a decimal to a mixed number?

First you convert the decimal into a mixed-number/fraction. Then you have to find the common denominator and compare.

Related questions

How do you add and subtra fraction?

You first convert the fractions to a common denominator. For example, 1/2 + 1/3 = 3/6 + 2/6. Then you just add (or subtract) the numerators, and put it over the common denominator; for the above example, that would be 5/6.


Common Denominator was the first video music of Justin Bieber?

No Common Denominator Is Not The First And There Is No Video Of This Song Unless A Fan Made One.


How do you change the dissimilar fraction to similar?

First you find a common denominator, then you convert both fractions to the common denominator. For the common denominator, find a number that is divisible by both denominators. Just multiplying both will work, but this is not always the most efficient method, since this may cause you more work later, to simplify the result. Once you decide on a common denominator, in both fractions multiply the numerator and the denominator by the same number. Example: 1/3 + 1/4 Common denominator is 12 Multiply the first fraction by 4/4, and the second by 3/3, to obtain: 4/12 + 3/12


How do you Add and Subtratc fractions mixed with the same denominators and Different denominators?

Different denominators: First, you find a common denominator (it can be the least common denominator, or any common denominator), and convert all fractions involved to equivalent fractions, using the common denominator. For example, 1/4 + 2/3. 12 is a common denominator; you can write this as 3/12 + 8/12.Same denominator: Just add (or subtract) the numerators, and keep the denominator. The above addition would become 11/12. Finally, you may want to check whether you can simplify the answer. Depending on how you (or the teacher) prefers the answer, you may also want to convert to a mixed fraction. In the above example, no such simplification is possible.


What is 14 and 45 first common denominator?

It is 45.


What is the first common denominator for 8 and 9?

72


How do you find the least common denominator of a set of unlike fractions?

least common denominator is nothing but least common multiple of denominators.


When adding or subtracting two fractions with denominators that are not equal what is the first step you take?

The first step to take is find the lowest common denominator of the fractions which can be done by finding the lowest common multiple of the numbers.


How do you subtract fractions in simplest form?

You first need to find a common denominator, not necessarily the least common denominator. Next, you rename the fractions according to the common denominator. Only then can you subtract the fractions. After subtraction you should simplify the answer.


How do you subtract a fraction from another fractions?

First you get a common denominator, for example, 1/4 - 1/2 would be changed to 1/4 - 2/4 because what ever you do to change to denominator, you have to do the same with the numerator. Then you subtract the numerators and keep the denominator the same. Example: 1/4 - 2/4= -1/4.


How do you add two fractions together?

If the denominators are equal, you just add the numerators. For example, 1/10 + 3/10 = 4/10. If the denominators are different, you must first (1) find a common denominator, and (2) convert both frations to that common denominator.


How do you minnous fractions?

Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.Subtracting fractions is similar to adding fractions. If the fractions have the same denominator, you subtract the numerators. If the fractions have different denominators, you have to convert to a common denominator first.