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Because that is not how addition of fractions is defined.

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โˆ™ 2017-08-05 09:33:47
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Q: Why is it inaccurate to simplify add the numerators if two fractions with unlike denominator?
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Related questions

How do you add improper fractions?

If the denominators are different, find a common denominator, convert the fractions to equivalent fractions with the same denominator, proceed with adding the numerators, put that total over the denominator, simplify if possible. If the denominators are the same, skip the conversion, proceed with adding the numerators, put that total over the denominator, simplify if possible.


How do you subtract and simplify fractions?

find a common denominator. multiply the top and bottom by it. then you can combine the numerators over the same denominator


How do you add multiple mixed fractions?

Find a common denominator, add the numerators, simplify if possible.


How do you add fractions in 6th grade math?

Find a common denominator between the two and then add the numerators. FInally simplify.


What is the rule in adding fractions having the same denominator?

Sum of the fractions = sum of numerators divided by their common denominator. Adding Fractions rule implies to addition of fractions having same denominator and as well as adding fractions with different denominators. So rule for adding fractions having the same denominator is add the numerators and simplify For example : 3/5 + 2/5 + 9/5 = (3 + 2 + 9)/5 [add the numerators] = 14/5


What are fraction that have same denominator called?

They are called like fractions.In order to add or subtract fractions you will usually need to convert them to like fractions. Then you simply add or subtract the numerators (as required) to form the numerator of the answer. The same (or common) denominator is the denominator of the answer. You may need to simplify the resulting fraction.


How do you add fractions using the least common denomanator?

Ok. First you make sure the denominator (bottom number) is the same on all the fractions. The easiest way to do this is to multiply the denominators together, then multiply each numerator by the opposite fractions denominator. This is the easiest way to do this, you will simplify later. ONLY DO THIS IF THE DENOMINATORS ARE DIFFERENT. If they are the same just add the numerators together to get your fraction. Then simplify.


1 over 12 times 4 over 9?

Multiply the numerators of both fractions. That's the numerator of the result.Also, multiply the denominator of both fractions. That's the denominator of the result. Simplify as appropriate. Actually, it helps to simplify before doing the actual multiplication.


What is the procedure for adding and subtraction fracions?

1) Convert the fractions to equivalent fractions, to ensure they have the same denominator. 2) Once they have the same denominator, just add or subtract the numerators. 3) As with most problems with fractions, check whether you can simplify the final result.


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.


When adding fractions with like denominators how do you convert?

When adding fractions with like denominators, add the numerators together and put the result over the denominator. Simplify if possible.


How do you multiply and divide dissimilar fractions?

The dissimilarity of the fractions doesn't matter. To multiply two fractions, multiply the numerators together, then the denominators, then put the new numerator over the new denominator. Simplify if you can. To divide fractions, invert the second fraction and multiply as just described.


How do you mutiply fraction by fraction?

The numerator (top) of the answer is the product of the numerators of the two fractions. The denominator (bottom) of the answer is the product of the denominators of the two fractions. You may then need to simplify.For example,2/5 * 3/8 = (2*3)/(5*8) = 6/40 = 3/20The numerator (top) of the answer is the product of the numerators of the two fractions. The denominator (bottom) of the answer is the product of the denominators of the two fractions. You may then need to simplify.For example,2/5 * 3/8 = (2*3)/(5*8) = 6/40 = 3/20The numerator (top) of the answer is the product of the numerators of the two fractions. The denominator (bottom) of the answer is the product of the denominators of the two fractions. You may then need to simplify.For example,2/5 * 3/8 = (2*3)/(5*8) = 6/40 = 3/20The numerator (top) of the answer is the product of the numerators of the two fractions. The denominator (bottom) of the answer is the product of the denominators of the two fractions. You may then need to simplify.For example,2/5 * 3/8 = (2*3)/(5*8) = 6/40 = 3/20


How do you multiply and divide similar fraction?

To multiply two fractions, multiply the numerators together, then the denominators, then put the new numerator over the new denominator. Simplify if you can. To divide fractions, invert the second fraction and multiply as just described.


Do you ever have to simplify if you find the LCD when subtracting fractions?

No because in order to subtract or add fractions the denominator of the fractions must be the same and if they are not then the lowest common denominator of the fractions must be found. Having subtracted or added the fractions then it may be possible to simplify the result.


What ingredients are in adding fraction?

If you mean the steps, they are as follows:* Identify a common denominator. Any common denominator will do. * Convert both fractions to equivalent fractions, with the common denominator found in the previous step. (If the fractions start off with the same denominator, there is nothing else to do in these first two steps.) * Add the numerators. That's the numerator of the result. Copy the common denominator as the denominator of the result. * Check whether you can simplify the resulting fraction.


How you multiply fractions?

To multiply fractions, multiply the numerators by the numerators, and the denominators by the denominators, and then (if possible) simplify the resulting fraction. For example, 2/3 x 4/5 = 8/15


What is the trick when adding fractions?

The trick to adding fractions is three simple steps. First, make sure the bottom numbers (the denominators) are the same. Secondly, add the top numbers (the numerators), put the answer over the denominator. Finally, simplify the fraction if need be.


How do you subtract a fraction?

Find a common denominator (make sure you multiply BOTH the numerator and the denominator) then subtract the numerators and simplify if necessary.


How do you subtract a fraction.?

Find a common denominator (make sure you multiply BOTH the numerator and the denominator) then subtract the numerators and simplify if necessary


How do you subtract dissimilar fraction?

Before fractions can be subtracted or added, they must have the same denominators. Therefore, each of the denominator and numerator of a pair of dissimilar fractions should be multiplied by a number chosen so that the resulting fractions will have the same denominators. This is most readily accomplished by multiplying each fraction by the denominator of the other. Once the fractions have a common denominator, their numerators can be subtracted or added to obtain the proper value of the numerator of the sum or difference, which will have the common denominator thus determined. It may, of course, be possible to simplify the resulting fraction.


What helps you simplify fractions?

Finding the GCF of the numerator and denominator.


What is 9 over 5 times 5 over 9?

9/5 * 5/9 = 1, because 9*5 is 45 and 5*9 is 45, the problem becomes 45/45, which is 1. To multiply fractions: # Simplify the fractions if not in lowest terms. # Multiply the numerators of the fractions to get the new numerator. # Multiply the denominators of the fractions to get the new denominator. Simplify the resulting fraction if possible.


How do you add and subtract proper fractions?

If the denominators are the same, add or subtract the numerators. If the denominators are different, convert them to a common denominator and add or subtract the numerators. 2/3 - 1/3 = 1/3 4/5 - 2/3 = 12/15 - 10/15 = 2/15


How do you add and subtract fractions with unlike denominators?

STEP ONE: Get a common denominator. STEP TWO: Add or subtract the numerators. STEP THREE: Simplify the result if needed. Notice that 3/27 can be simplified, since the numerator and denominator are both divisible by 3. And that's all there is to it! Final Answer: