math help

What is 91/1 + 6/9?

What is 91/1 + 6/9?

This is how you add

91
1
+
6
9

Step 1

We have to make sure the denominators are equal.

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.

91/1 times 9

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

819
9
+
6
9

Step 2

Since our denominators match, we can add the numerators.

819 + 6 = 825

Answer:

825
9

Step 3

Now, do we need to simplify this fraction?

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

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

Are both the numerator and the denominator evenly divisible by 3? Yes! So we reduce it:

825
9
÷ 3 =
275
3

So far so good... let's try to divide by that number again.

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

No good. 5 is larger than 3. So we're done reducing.

And we're done! Here's the final answer to 91/1 + 6/9

91
1
+
6
9
=
275
3
© 2014 Randy Tayler