10/20 + 11/13

I know I have to first find the LCM which is 260.
Then I found the equivalent fractions which were 130/260 and 220/260.
When I add those I get 350/260 which is an improper fraction.

Then I change that to a mixed number fraction. The answer I got was 1 9/26 but for some reason that just seems wrong??

4 answers

That answer doesn't seem wrong to me?

Clarify your problem if you would like additional help.
Let's estimate. 10/20 = 1/2
11/13 is way over 1/2. You know that your answer must be over 1.

Your answer looks right to me, too.
I'm not sure, it just didn't seem correct -- but thanks, I guess I will go with it! :)
seems simple enough to me

350/260 = 35/36

Now it's clear that the answer is 1 9/26 since 35=26+9
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