Question

what is the general rule in adding fractions having the same denominator

Answer 1

Answer:

To add or subtract fractions they must have the same denominator (the bottom value). If the denominators are already the same then it is just a matter of either adding or subtracting the numerators (the top value). If the denominators are different then a common denominator needs to be found.

Step-by-step explanation:

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Answer 2

Answer:

Add the numerators and express the denominator in its simplest form.

Subtract the numerators and add the same denominator.

Copy both the numerator and denominator.

Add the numerators and rewrite the common denominator.