What is 91/1 + 2/9?

Here's how you add

Step 1

Our denominators (bottom numbers) don't match, so we can't add yet.

9 goes into 1 evenly, so we only need to multiply one term to get a common denominator.

Multiply 91 by 9, and get 819, then we multiply 1 by 9 and get 9.

We now have a new problem, that looks like this:

Step 2

Since our denominators match, we can add the numerators.

819 + 2 = 821

That gives us the sum, which is

Step 3

Now, do we need to simplify this fraction?

First, we attempt to divide it by 2...

Nope. Try the next prime number, 3...

Nope. Try the next prime number, 5...

Nope. Try the next prime number, 7...

Nope. Try the next prime number, 11...

No good. 11 is larger than 9. So we're done reducing.

Congratulations! Here's your final answer to 91/1 + 2/9