Here's how you add
Our denominators (bottom numbers) don't match, so we can't add yet.
10 goes into 5 evenly, so we only need to multiply one term to get a common denominator.
Multiply 2 by 2, and get 4, then we multiply 5 by 2 and get 10.
We now have a new problem, that looks like this:
Since our denominators match, we can add the numerators.
4 + 2 = 6
Now, do we need to simplify this fraction?
First, we attempt to divide it by 2...
Are both the numerator and the denominator evenly divisible by 2? Yes! So we reduce it:
Now, try the same number again.
Nope. Try the next prime number, 3...
Nope. Try the next prime number, 5...
No good. 5 is larger than 3. So we're done reducing.
Congratulations! Here's your final answer to 2/5 + 2/10