math help

What is 91/1 + 9/11?

What is 91/1 + 9/11?

Here's how to add

91
1
+
9
11

Step 1

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

Since 1 is evenly divided by 11, we can multiply just one term to get a common denominator.

Multiply 91 by 11, and get 1001, then we multiply 1 by 11 and get 11.

91/1 times 11

So now our fractions look like this:

1001
11
+
9
11

Step 2

Since our denominators match, we can add the numerators.

1001 + 9 = 1010

So the answer is:

1010
11

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...

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...

Nope. Try the next prime number, 13...

No good. 13 is larger than 11. So we're done reducing.

Congratulations! Here's your final answer to 91/1 + 9/11

91
1
+
9
11
=
1010
11
© 2014 Randy Tayler