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5 votes
How do you add unlike fractions

2 Answers

3 votes
First, you find a common denominator example 10 and 5, they both have 10 in there. (5,10,15,20) (10,20,30,40) You see a common number which is 10.

You make that your denominator and then whatever times 10 in the five factor will be how much you multiply by. Hope that helped!
User Ben Dilts
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4 votes
You have to make each fraction have the same denominator and then add the numerators but keep the denominator the same.

For example:
1/2+1/4 (I need to multiply the first fraction by 2 to get a denom. of 4)

2/4+1/4 (add the numerators and keep the denom.)

=3/4

Hope this helps!
User Egurb
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7.5k points