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3 years ago

When adding and subtracting numbers do you add and subtract the denominator

Mathematics

2 answers:

NNADVOKAT [17]3 years ago

4 0

Answer:

No, you don't.

Step-by-step explanation:

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

Hope this helps! Have a great day!

kotegsom [21]3 years ago

3 0

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:

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<h3>How to rewrite the equation</h3>

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3 years ago

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

When adding and subtracting numbers do you add and subtract the denominator