What is 91/1 + 5/7?

This is how to add

Step 1

We have to make sure the denominators are equal.

Since 1 is evenly divided by 7, we can multiply just one term to get a common denominator.

Multiply 91 by 7, and get 637, then we multiply 1 by 7 and get 7.

So now our fractions look like this:

Step 2

Since our denominators match, we can add the numerators.

637 + 5 = 642

So the answer is:

Step 3

Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction?

To find out, we try dividing it by 2...

No good. So next you try the next prime number, which is 3...

No good. So next you try the next prime number, which is 5...

No good. So next you try the next prime number, which is 7...

No good. So next you try the next prime number, which is 11...

No good. 11 is larger than 7. So we're done reducing.

And we're done! Here's the final answer to 91/1 + 5/7