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If the denominators are the same, just add or subtract the numerators. For example, 2/7 + 3/7 = 5/7. am i right?

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13y ago

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Related Questions

What are the rules for adding fractions?

Ensure that the denominators are the same when adding or subtracting fractions.


What are the rules for adding subtracting multiplying and dividing fractions?

no answer


How is adding and subtracting fractions similar to adding and subtracting whole numbers?

Adding and subtracting fractions is similar to adding and subtracting whole numbers in that both processes involve combining or removing quantities. In both cases, you must ensure that the values being combined are compatible; for whole numbers, this is direct, while for fractions, a common denominator is required to perform the operation. Additionally, both require careful attention to the values' sizes to maintain accuracy in the results. Ultimately, the fundamental principles of arithmetic apply to both whole numbers and fractions, emphasizing the importance of equivalence and proper operation rules.


What are the rules in subtracting similar fraction?

If the denominators are the same (which is what I understand by "similar fractions"), just subtract the numerators (the upper part).


What are the Rules of adding and subtracting dissimilar fractions?

If their denominators are different then find their lowest common denominator by means of their lowest common multiple remembering to adjust their numerators accordingly before adding or subtracting.


What are the rules for subtracting fractions?

You multiply the fractions until the denominators are equal. Then, you subtract.


What is the rules for algeraba for subtracting negatives?

Subtracting a negative is the same as adding the equivalent positive. For example, subtracting minus 10 is the same as adding 10.


What are the rules in adding and subtracting polynomial?

your mom is 2


Who made the rules for adding and subtracting integers?

David Missoula's


What are the rules of subtracting polynomials?

You subtract a polynomial by adding its additive inverse. For example, subtracting (x - y) is the same as adding (-x + y). Alternately, you can simply subtract similar terms - that is, subtract the coefficients (the numbers) for terms that have the same combination of variables.


Why do you change mixed numbers to improper fractions before multiplying and dividing?

Because common denominators allow adding and subtracting of numerators. Improper fractions also have simplified rules over mixed numbers when performing multiplication and division.


How are adding subtracting decimals different from multiplying them?

They aren't. The rules are the same as those for adding/subtracting or multiplying integers. Just be careful of the decimal point's location.

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