when adding and subtracting numbers do you add and subtract the denominator​

Question

when adding and subtracting numbers do you add and subtract the denominator​

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Hưng Khoa 7 months 2021-07-30T08:14:48+00:00 2 Answers 6 views 0

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    0
    2021-07-30T08:15:50+00:00

    Answer:

    No, you adjust the numerator and denominator to a common denominator, then do the addition/subtraction operations with with the numerator, and finally reduce it to the lowest fraction.

    Example:

    1/3 + 3/4 = ?

    change to a common denominator  (12 works for 3 and 4)

    4/12 + 9/12 = ?

    add the 9 and 12

    4/12 + 9/12 = 13/12

    reduce to lowest form

    12/12 = 1 1/12

    Step-by-step explanation:

    0
    2021-07-30T08:16:20+00:00

    Answer:

    No, you don’t.

    Step-by-step explanation:

    The denominator only changes if you’re multiplying/dividing. You may need to create an equivalent fraction to add the fractions together, but you don’t add or subtract the denominator.

    Hope this helps! Have a great day!

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